Scalloped Potatoes Recipe

Natalie

The founder of Cookleez

There’s something undeniably comforting about a dish of creamy, tender scalloped potatoes. It’s the kind of side dish that evokes memories of cozy family dinners and holiday feasts, a true classic that has stood the test of time. In my own kitchen, this homemade scalloped potatoes recipe has become a regular request. The creamy sauce, infused with the subtle warmth of thyme and nutmeg, perfectly complements the naturally sweet Yukon gold potatoes. It’s a dish that’s simple enough for a weeknight meal yet elegant enough to grace your holiday table. Every time I bake these scalloped potatoes, the aroma fills the house with a homey, inviting scent, and the smiles around the dinner table are always guaranteed. This isn’t just a recipe; it’s an experience, a taste of pure comfort and culinary satisfaction. Get ready to rediscover the magic of scalloped potatoes with this foolproof recipe that will make you the star of your next meal!

Ingredients

To create these delectable homemade scalloped potatoes, you’ll need just a handful of simple yet high-quality ingredients. Each element plays a crucial role in building the layers of flavor and creamy texture that make this dish so irresistible. Let’s break down each ingredient and explore why they are essential for achieving potato perfection:

  • 2 pounds Yukon gold potatoes, about 4 cups sliced potatoes: The star of the show! Yukon gold potatoes are the ideal choice for scalloped potatoes for several reasons. Their naturally buttery flavor and creamy texture shine beautifully in this dish. They hold their shape well during baking, ensuring tender slices without becoming mushy. Their thin skin is also a bonus, often negating the need for peeling, saving you prep time and adding a touch of rustic charm. If you can’t find Yukon golds, other waxy potatoes like red potatoes or even fingerling potatoes can work, but Yukon golds truly deliver the best flavor and texture for classic scalloped potatoes. Avoid Russet potatoes, as their high starch content can lead to a drier, less creamy result.
  • 2 tablespoons unsalted butter, +more for greasing pan: Butter is the foundation of flavor and richness in this recipe. Unsalted butter allows you to control the overall saltiness of the dish. We use butter both to grease the casserole dish, preventing sticking and adding a subtle buttery note to the bottom layer of potatoes, and as the base for our creamy sauce. The butter creates a luscious roux with the flour, which thickens the sauce to the perfect consistency. For greasing the pan, you can also use cooking spray or olive oil, but butter imparts a richer flavor.
  • 2 tablespoons minced shallot: Shallots bring a delicate, slightly sweet, and sophisticated onion flavor to the sauce, far more nuanced than regular onions. Their milder taste prevents them from overpowering the potatoes and complements the creamy sauce beautifully. When sautéed in butter, shallots release their aromatic oils, infusing the entire dish with a subtle savory sweetness. If you don’t have shallots, you can substitute with finely minced yellow onion or even a clove of garlic for a slightly different flavor profile.
  • 2 tablespoons all-purpose flour: Flour is the thickening agent in our creamy sauce. When combined with melted butter, it creates a roux, the base for many classic cream sauces like béchamel. Cooking the roux briefly before adding liquids is crucial to eliminate the raw flour taste and ensure a smooth, velvety sauce. All-purpose flour is readily available and works perfectly for this purpose. For a gluten-free option, you could try using a gluten-free all-purpose flour blend, but be sure to check the package instructions as cooking times may vary.
  • ½ cup low-sodium vegetable or chicken broth: Broth adds depth of flavor and moisture to the sauce. Using low-sodium broth is important to control the salt content of the dish, as we are also adding salt separately. Vegetable broth keeps the dish vegetarian-friendly, while chicken broth adds a slightly richer, more savory dimension. You can also use homemade broth for the most intense flavor. If you don’t have broth on hand, you can use milk or even water in a pinch, but broth significantly enhances the overall taste of the sauce.
  • ¾ cup half and half, or cream: This is what makes the sauce truly creamy and luxurious. Half and half provides a lighter creaminess, while heavy cream will result in an even richer and thicker sauce. The choice depends on your preference. Half and half is a good balance of creaminess and richness for everyday scalloped potatoes. For a truly decadent treat, heavy cream is the way to go. You can also use whole milk for a lighter sauce, but it will be less creamy. For a dairy-free option, unsweetened plant-based creamers like oat cream or cashew cream can be used, but the flavor and texture may slightly differ.
  • 1 teaspoon kosher salt: Salt is essential for enhancing all the flavors in the dish. Kosher salt is preferred by many cooks for its clean, pure flavor and larger crystals, which are easier to pinch and distribute evenly. Adjust the salt amount to your taste, but don’t skimp on it, as salt is crucial for bringing out the best in the potatoes and the creamy sauce.
  • ¼ teaspoon black pepper: Black pepper adds a subtle warmth and a hint of spice to the sauce. Freshly ground black pepper is always preferable for its brighter, more aromatic flavor. The pepper complements the nutmeg and thyme beautifully, adding complexity to the creamy sauce.
  • ¼ teaspoon grated nutmeg: Nutmeg is the secret ingredient that elevates this dish from good to extraordinary. A touch of grated nutmeg adds a warm, slightly sweet, and subtly spicy note that perfectly complements the creamy potatoes and thyme. Freshly grated nutmeg is best for the most intense flavor, but pre-ground nutmeg will also work. Don’t overdo it with the nutmeg; a little goes a long way.
  • 2 teaspoons fresh thyme leaves, optional: Fresh thyme adds a bright, herbaceous, and slightly lemony flavor that beautifully complements the potatoes and creamy sauce. Thyme and potatoes are a classic pairing, and the fresh thyme leaves infuse the sauce with a delightful aroma and flavor. If you don’t have fresh thyme, you can use dried thyme, but use about half the amount (1 teaspoon) as dried herbs are more concentrated. Other herbs that would also work well include rosemary or a pinch of dried sage.

Instructions

Making homemade scalloped potatoes from scratch is easier than you might think! Follow these step-by-step instructions to create a comforting and delicious side dish that will impress your family and friends. We’ll break down each step to ensure success, even for beginner cooks.

  1. Preheat the oven to 375℉/190℃. Generously butter a 2-quart casserole dish with butter. Starting with a properly preheated oven is crucial for even baking. Setting the oven to 375℉ (190℃) ensures that the potatoes cook through and the sauce thickens beautifully without burning. Generously buttering the casserole dish is important to prevent the potatoes from sticking and to add a touch of buttery flavor to the bottom layer. Use unsalted butter and ensure you coat the bottom and sides of the dish thoroughly. A 2-quart casserole dish is the ideal size for this recipe, allowing for even cooking and proper sauce distribution.
  2. Peel 2 pounds Yukon gold potatoes and then use a mandolin, food processor fitted with slicing blade, or sharp knife to thinly slice potatoes into ⅛-inch thin slices. Arrange the sliced potatoes in even layers in the buttered casserole dish. Peeling the potatoes is optional, especially if you are using Yukon golds with their thin skin. However, peeling can result in a more refined texture for scalloped potatoes. Thinly slicing the potatoes is key to achieving tender, evenly cooked potatoes. ⅛-inch slices are ideal – thin enough to cook quickly and evenly but not so thin that they become mushy. A mandolin is the easiest and quickest way to achieve uniform slices, but a food processor with a slicing blade or a sharp knife will also work. If using a knife, take your time and aim for consistent thickness. Arrange the potato slices in even layers in the buttered casserole dish, slightly overlapping them. This allows the sauce to penetrate between the layers and ensures even cooking.
  3. Melt 2 tablespoons unsalted butter over medium-low heat in a heavy-bottomed medium saucepan. Once the butter has melted, add 2 tablespoons minced shallot and sauté for about 3 minutes or until the shallots begin to soften, being careful to not burn your shallots. Using a heavy-bottomed saucepan is important for even heat distribution and prevents scorching of the sauce. Melt the butter over medium-low heat to prevent it from browning. Once melted, add the minced shallots and sauté them until they become softened and translucent, about 3 minutes. Sautéing the shallots in butter releases their aromatic oils and mellows their flavor, creating a flavorful base for the cream sauce. Be careful not to burn the shallots, as this will impart a bitter taste to the sauce. Reduce the heat if they start to brown too quickly.
  4. Add 2 tablespoons all-purpose flour to the saucepan whisking well to form a thick paste. Allow to cook for 1 minute, to remove the raw flour taste from the sauce. This step is crucial for creating a smooth, lump-free cream sauce. Adding the flour to the melted butter and sautéed shallots creates a roux, which is the foundation of the sauce. Whisk the flour into the butter and shallots constantly until it forms a thick paste. Cook the roux for about 1 minute over medium-low heat, stirring continuously. This cooks out the raw flour taste and allows the roux to thicken properly. Don’t skip this step, as it significantly improves the flavor and texture of the sauce.
  5. Slowly whisk ½ cup low-sodium vegetable or chicken broth into the roux until incorporated. Then slowly whisk in ¾ cup half and half until incorporated. Season the sauce with 1 teaspoon kosher salt, ¼ teaspoon black pepper, ¼ teaspoon grated nutmeg, and 2 teaspoons fresh thyme leaves. Allow the sauce to simmer on medium-low heat for several minutes until the sauce has thickened, whisking constantly. The sauce is ready when it coats the back of a spoon and slowly drips off the spoon. Adding the liquids gradually and whisking constantly is essential to prevent lumps from forming in the sauce. Start by slowly whisking in the low-sodium broth, a little at a time, until it is fully incorporated into the roux and the mixture becomes smooth. Then, slowly whisk in the half and half in the same manner. Once the liquids are incorporated, season the sauce with kosher salt, black pepper, grated nutmeg, and fresh thyme leaves. Bring the sauce to a gentle simmer over medium-low heat and continue to simmer, whisking constantly, until it thickens enough to coat the back of a spoon and slowly drip off. This usually takes several minutes. Simmering the sauce allows it to thicken and the flavors to meld together beautifully. Taste the sauce and adjust seasoning as needed.
  6. Remove the cream sauce from the heat and pour it over the prepared potatoes in the casserole dish. Push down lightly to allow the sauce to cover all the potatoes from top to bottom. Cover the dish tightly with foil. Once the cream sauce is thickened, remove it from the heat and immediately pour it evenly over the sliced potatoes in the casserole dish. Use a spatula or spoon to gently push down on the potatoes, ensuring that the sauce reaches all layers and covers the potatoes from top to bottom. Covering the dish tightly with aluminum foil is crucial for steaming the potatoes and ensuring they cook through evenly. The foil traps the steam and moisture, preventing the potatoes from drying out and helping them become tender.
  7. Bake covered for 45 minutes. After 45 minutes, remove the foil, and bake for an additional 25-30 minutes, or until potatoes are tender and browned. Bake the scalloped potatoes covered with foil in the preheated oven for 45 minutes. After 45 minutes, carefully remove the foil. At this point, the potatoes should be mostly tender, and the sauce will have thickened further. Bake uncovered for an additional 25-30 minutes, or until the potatoes are fully tender when pierced with a fork and the top is golden brown and bubbly. Baking uncovered for the final portion allows the top to brown and caramelize, adding a delicious depth of flavor and texture. Keep an eye on the potatoes during the final baking stage to prevent them from burning. If the top starts to brown too quickly, you can loosely tent it with foil.
  8. Let the scalloped potatoes rest for 10-15 minutes and then serve warm. Allowing the scalloped potatoes to rest for 10-15 minutes after baking is important for the sauce to set slightly and for the flavors to meld together even further. During this resting time, the potatoes will also cool down slightly, making them easier to serve. Serve the scalloped potatoes warm as a side dish to your favorite main courses.

Nutrition Facts

(Please note: Nutritional information is an estimate and can vary based on specific ingredients and brands used.)

Servings: 6

Approximate Calories per Serving: 350-400 calories

Per Serving (Approximate Values):

  • Calories: 375
  • Fat: 25g
    • Saturated Fat: 15g
  • Cholesterol: 75mg
  • Sodium: 450mg
  • Carbohydrates: 35g
    • Fiber: 3g
    • Sugar: 5g
  • Protein: 7g

This nutritional breakdown highlights that scalloped potatoes, while incredibly delicious, are a rich and indulgent side dish. They are a good source of carbohydrates and provide some protein, but are also relatively high in fat and calories due to the creamy sauce. Enjoy them in moderation as part of a balanced meal.

Preparation Time

This homemade scalloped potatoes recipe is surprisingly easy to prepare, with most of the time being hands-off baking time. Here’s a breakdown of the preparation and cooking times:

  • Prep Time: 15 minutes
  • Cook Time: 1 hour 15 minutes
  • Total Time: 1 hour 30 minutes

The prep time primarily involves peeling and slicing the potatoes, mincing the shallots, and making the cream sauce. The majority of the cook time is spent in the oven, allowing you to focus on other aspects of your meal or simply relax while the delicious aroma fills your kitchen. This recipe is perfect for when you want a comforting and impressive side dish without spending hours in the kitchen.

How to Serve

Scalloped potatoes are incredibly versatile and pair beautifully with a wide range of main courses. Their creamy texture and comforting flavor make them a welcome addition to any meal. Here are some delicious ways to serve your homemade scalloped potatoes:

  • Classic Main Course Pairings:
    • Roasted Chicken or Turkey: Scalloped potatoes are a quintessential side dish for roasted poultry. Their creamy richness complements the savory flavor of chicken or turkey perfectly, especially during holiday meals.
    • Baked Ham: The slightly sweet and salty flavor of baked ham is a fantastic match for the creamy and savory scalloped potatoes. This combination is a holiday favorite for a reason.
    • Beef Tenderloin or Steak: For a more elegant meal, serve scalloped potatoes alongside beef tenderloin or grilled steak. The richness of the potatoes balances the hearty flavor of the beef beautifully.
    • Pork Chops or Roast Pork: Scalloped potatoes are also delicious with pork dishes, whether it’s pan-seared pork chops or a slow-roasted pork shoulder.
  • Vegetarian Main Course Companions:
    • Lentil Loaf or Nut Roast: For a vegetarian feast, serve scalloped potatoes with a hearty lentil loaf or nut roast. The creamy potatoes provide a comforting contrast to the earthy flavors of these vegetarian mains.
    • Mushroom Wellington: The richness of scalloped potatoes complements the savory and earthy flavors of mushroom Wellington, creating a satisfying and elegant vegetarian meal.
    • Vegetable Skewers or Grilled Vegetables: For a lighter vegetarian option, serve scalloped potatoes alongside grilled vegetable skewers or a platter of roasted vegetables. The creaminess of the potatoes adds a touch of indulgence to a vegetable-focused meal.
  • Occasions to Serve Scalloped Potatoes:
    • Holiday Dinners: Scalloped potatoes are a must-have side dish for Thanksgiving, Christmas, Easter, and other holiday gatherings. They are a crowd-pleaser that everyone will love.
    • Sunday Suppers: Bring the comfort of a Sunday supper to your table with a dish of homemade scalloped potatoes. They are perfect for a relaxed family meal.
    • Potlucks and Gatherings: Scalloped potatoes are a great dish to bring to potlucks or gatherings as they are easy to transport and reheat and are always a hit.
    • Special Occasions: Elevate any special occasion, from birthdays to anniversaries, with the addition of these creamy and elegant scalloped potatoes.

Additional Tips for Perfect Scalloped Potatoes

Want to take your scalloped potatoes to the next level? Here are five additional tips to ensure potato perfection every time:

  1. Use a Mandolin or Food Processor for Uniform Slices: Achieving uniformly thin potato slices is crucial for even cooking. A mandolin or food processor with a slicing blade makes this task quick and easy, ensuring that all your potato slices cook at the same rate and become tender at the same time. If slicing by hand, aim for consistent ⅛-inch thickness.
  2. Don’t Rinse the Potatoes After Slicing (Unless Using Russets): For Yukon gold potatoes, rinsing is generally not necessary and can actually wash away some of the starch that helps the sauce thicken. However, if you are using Russet potatoes, which are higher in starch, rinsing the slices in cold water and patting them dry can help prevent them from becoming overly starchy and gummy. For Yukon golds, embrace the natural starch for a creamier sauce.
  3. Infuse the Cream Sauce with Extra Flavor: While thyme and nutmeg are classic additions, feel free to experiment with other flavor infusions for your cream sauce. Consider adding a bay leaf to the sauce while it simmers for a subtle herbal note, or try a pinch of smoked paprika for a smoky depth. A clove of garlic minced and sautéed with the shallots can also add a delicious savory dimension. You can also experiment with different cheeses, like Gruyere or Parmesan, for a richer and cheesier flavor.
  4. Adjust Baking Time Based on Potato Thickness and Oven: Baking times can vary depending on the thickness of your potato slices, your oven’s calibration, and even the type of casserole dish you use. Start checking for doneness around the 1-hour mark. The potatoes are ready when they are easily pierced with a fork and the top is golden brown and bubbly. If the top is browning too quickly before the potatoes are tender, loosely tent the dish with foil to prevent burning.
  5. Make Ahead and Reheat for Convenience: Scalloped potatoes are a great make-ahead dish, perfect for busy weeknights or holiday gatherings. You can assemble the dish completely, cover it tightly with foil, and refrigerate it for up to 24 hours before baking. When ready to bake, add about 15-20 minutes to the covered baking time to ensure the potatoes are heated through. To reheat leftover baked scalloped potatoes, cover them loosely with foil and bake in a 350℉ (175℃) oven until heated through, about 20-30 minutes. You can also reheat individual portions in the microwave, but the texture may be slightly softer.

Frequently Asked Questions (FAQ) About Scalloped Potatoes

Got questions about making the best homemade scalloped potatoes? Here are answers to some common queries:

Q1: Can I add cheese to scalloped potatoes?
A: Absolutely! Cheese can add another layer of flavor and richness to scalloped potatoes. Classic cheese additions include Gruyere, Parmesan, cheddar, or a combination of cheeses. You can sprinkle shredded cheese between the layers of potatoes or on top during the last 15-20 minutes of baking for a cheesy, bubbly topping. For a more pronounced cheese flavor, you can also incorporate shredded cheese directly into the cream sauce.

Q2: Can I make scalloped potatoes ahead of time?
A: Yes, scalloped potatoes are an excellent make-ahead dish. You can assemble the entire dish, cover it tightly with foil, and refrigerate it for up to 24 hours before baking. When you are ready to bake, simply add about 15-20 minutes to the covered baking time to ensure the potatoes are heated through. This makes them perfect for holiday meals or potlucks where you want to get ahead on prep work.

Q3: Can I freeze scalloped potatoes?
A: While you can technically freeze scalloped potatoes, the texture may change slightly upon thawing and reheating. The creamy sauce can sometimes become slightly grainy or separate after freezing and thawing. If you do freeze them, allow them to cool completely, then wrap them tightly in plastic wrap and foil, and freeze for up to 2-3 months. Thaw overnight in the refrigerator before reheating in the oven. For best results, it’s generally recommended to make scalloped potatoes fresh or prepare them just a day ahead.

Q4: Can I make vegan scalloped potatoes?
A: Yes, you can easily adapt this recipe to be vegan. Substitute the butter with vegan butter or olive oil. For the cream sauce, use unsweetened plant-based milk like oat milk or cashew milk and a vegan cream alternative like cashew cream or full-fat coconut milk (use only the thick cream part from the top of a chilled can). You can also use nutritional yeast for a cheesy flavor or a vegan cheese alternative. Ensure your vegetable broth is also vegan-friendly.

Q5: What other types of potatoes can I use besides Yukon golds?
A: While Yukon gold potatoes are highly recommended for their flavor and texture, you can use other waxy potato varieties like red potatoes, fingerling potatoes, or even white potatoes. These potatoes hold their shape well during baking and have a creamy texture. Avoid using Russet potatoes, as their high starch content can lead to a drier and less creamy result in scalloped potatoes. If you do use Russets, rinsing the slices and patting them dry can help reduce the starch content.

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Scalloped Potatoes Recipe


  • Author: Chloe

Ingredients

Scale

  • 2 pounds Yukon gold potatoes, about 4 cups sliced potatoes: The star of the show! Yukon gold potatoes are the ideal choice for scalloped potatoes for several reasons. Their naturally buttery flavor and creamy texture shine beautifully in this dish. They hold their shape well during baking, ensuring tender slices without becoming mushy. Their thin skin is also a bonus, often negating the need for peeling, saving you prep time and adding a touch of rustic charm. If you can’t find Yukon golds, other waxy potatoes like red potatoes or even fingerling potatoes can work, but Yukon golds truly deliver the best flavor and texture for classic scalloped potatoes. Avoid Russet potatoes, as their high starch content can lead to a drier, less creamy result.
  • 2 tablespoons unsalted butter, +more for greasing pan: Butter is the foundation of flavor and richness in this recipe. Unsalted butter allows you to control the overall saltiness of the dish. We use butter both to grease the casserole dish, preventing sticking and adding a subtle buttery note to the bottom layer of potatoes, and as the base for our creamy sauce. The butter creates a luscious roux with the flour, which thickens the sauce to the perfect consistency. For greasing the pan, you can also use cooking spray or olive oil, but butter imparts a richer flavor.
  • 2 tablespoons minced shallot: Shallots bring a delicate, slightly sweet, and sophisticated onion flavor to the sauce, far more nuanced than regular onions. Their milder taste prevents them from overpowering the potatoes and complements the creamy sauce beautifully. When sautéed in butter, shallots release their aromatic oils, infusing the entire dish with a subtle savory sweetness. If you don’t have shallots, you can substitute with finely minced yellow onion or even a clove of garlic for a slightly different flavor profile.
  • 2 tablespoons all-purpose flour: Flour is the thickening agent in our creamy sauce. When combined with melted butter, it creates a roux, the base for many classic cream sauces like béchamel. Cooking the roux briefly before adding liquids is crucial to eliminate the raw flour taste and ensure a smooth, velvety sauce. All-purpose flour is readily available and works perfectly for this purpose. For a gluten-free option, you could try using a gluten-free all-purpose flour blend, but be sure to check the package instructions as cooking times may vary.
  • ½ cup low-sodium vegetable or chicken broth: Broth adds depth of flavor and moisture to the sauce. Using low-sodium broth is important to control the salt content of the dish, as we are also adding salt separately. Vegetable broth keeps the dish vegetarian-friendly, while chicken broth adds a slightly richer, more savory dimension. You can also use homemade broth for the most intense flavor. If you don’t have broth on hand, you can use milk or even water in a pinch, but broth significantly enhances the overall taste of the sauce.
  • ¾ cup half and half, or cream: This is what makes the sauce truly creamy and luxurious. Half and half provides a lighter creaminess, while heavy cream will result in an even richer and thicker sauce. The choice depends on your preference. Half and half is a good balance of creaminess and richness for everyday scalloped potatoes. For a truly decadent treat, heavy cream is the way to go. You can also use whole milk for a lighter sauce, but it will be less creamy. For a dairy-free option, unsweetened plant-based creamers like oat cream or cashew cream can be used, but the flavor and texture may slightly differ.
  • 1 teaspoon kosher salt: Salt is essential for enhancing all the flavors in the dish. Kosher salt is preferred by many cooks for its clean, pure flavor and larger crystals, which are easier to pinch and distribute evenly. Adjust the salt amount to your taste, but don’t skimp on it, as salt is crucial for bringing out the best in the potatoes and the creamy sauce.
  • ¼ teaspoon black pepper: Black pepper adds a subtle warmth and a hint of spice to the sauce. Freshly ground black pepper is always preferable for its brighter, more aromatic flavor. The pepper complements the nutmeg and thyme beautifully, adding complexity to the creamy sauce.
  • ¼ teaspoon grated nutmeg: Nutmeg is the secret ingredient that elevates this dish from good to extraordinary. A touch of grated nutmeg adds a warm, slightly sweet, and subtly spicy note that perfectly complements the creamy potatoes and thyme. Freshly grated nutmeg is best for the most intense flavor, but pre-ground nutmeg will also work. Don’t overdo it with the nutmeg; a little goes a long way.
  • 2 teaspoons fresh thyme leaves, optional: Fresh thyme adds a bright, herbaceous, and slightly lemony flavor that beautifully complements the potatoes and creamy sauce. Thyme and potatoes are a classic pairing, and the fresh thyme leaves infuse the sauce with a delightful aroma and flavor. If you don’t have fresh thyme, you can use dried thyme, but use about half the amount (1 teaspoon) as dried herbs are more concentrated. Other herbs that would also work well include rosemary or a pinch of dried sage.

Instructions

  1. Preheat the oven to 375℉/190℃. Generously butter a 2-quart casserole dish with butter. Starting with a properly preheated oven is crucial for even baking. Setting the oven to 375℉ (190℃) ensures that the potatoes cook through and the sauce thickens beautifully without burning. Generously buttering the casserole dish is important to prevent the potatoes from sticking and to add a touch of buttery flavor to the bottom layer. Use unsalted butter and ensure you coat the bottom and sides of the dish thoroughly. A 2-quart casserole dish is the ideal size for this recipe, allowing for even cooking and proper sauce distribution.
  2. Peel 2 pounds Yukon gold potatoes and then use a mandolin, food processor fitted with slicing blade, or sharp knife to thinly slice potatoes into ⅛-inch thin slices. Arrange the sliced potatoes in even layers in the buttered casserole dish. Peeling the potatoes is optional, especially if you are using Yukon golds with their thin skin. However, peeling can result in a more refined texture for scalloped potatoes. Thinly slicing the potatoes is key to achieving tender, evenly cooked potatoes. ⅛-inch slices are ideal – thin enough to cook quickly and evenly but not so thin that they become mushy. A mandolin is the easiest and quickest way to achieve uniform slices, but a food processor with a slicing blade or a sharp knife will also work. If using a knife, take your time and aim for consistent thickness. Arrange the potato slices in even layers in the buttered casserole dish, slightly overlapping them. This allows the sauce to penetrate between the layers and ensures even cooking.
  3. Melt 2 tablespoons unsalted butter over medium-low heat in a heavy-bottomed medium saucepan. Once the butter has melted, add 2 tablespoons minced shallot and sauté for about 3 minutes or until the shallots begin to soften, being careful to not burn your shallots. Using a heavy-bottomed saucepan is important for even heat distribution and prevents scorching of the sauce. Melt the butter over medium-low heat to prevent it from browning. Once melted, add the minced shallots and sauté them until they become softened and translucent, about 3 minutes. Sautéing the shallots in butter releases their aromatic oils and mellows their flavor, creating a flavorful base for the cream sauce. Be careful not to burn the shallots, as this will impart a bitter taste to the sauce. Reduce the heat if they start to brown too quickly.
  4. Add 2 tablespoons all-purpose flour to the saucepan whisking well to form a thick paste. Allow to cook for 1 minute, to remove the raw flour taste from the sauce. This step is crucial for creating a smooth, lump-free cream sauce. Adding the flour to the melted butter and sautéed shallots creates a roux, which is the foundation of the sauce. Whisk the flour into the butter and shallots constantly until it forms a thick paste. Cook the roux for about 1 minute over medium-low heat, stirring continuously. This cooks out the raw flour taste and allows the roux to thicken properly. Don’t skip this step, as it significantly improves the flavor and texture of the sauce.
  5. Slowly whisk ½ cup low-sodium vegetable or chicken broth into the roux until incorporated. Then slowly whisk in ¾ cup half and half until incorporated. Season the sauce with 1 teaspoon kosher salt, ¼ teaspoon black pepper, ¼ teaspoon grated nutmeg, and 2 teaspoons fresh thyme leaves. Allow the sauce to simmer on medium-low heat for several minutes until the sauce has thickened, whisking constantly. The sauce is ready when it coats the back of a spoon and slowly drips off the spoon. Adding the liquids gradually and whisking constantly is essential to prevent lumps from forming in the sauce. Start by slowly whisking in the low-sodium broth, a little at a time, until it is fully incorporated into the roux and the mixture becomes smooth. Then, slowly whisk in the half and half in the same manner. Once the liquids are incorporated, season the sauce with kosher salt, black pepper, grated nutmeg, and fresh thyme leaves. Bring the sauce to a gentle simmer over medium-low heat and continue to simmer, whisking constantly, until it thickens enough to coat the back of a spoon and slowly drip off. This usually takes several minutes. Simmering the sauce allows it to thicken and the flavors to meld together beautifully. Taste the sauce and adjust seasoning as needed.
  6. Remove the cream sauce from the heat and pour it over the prepared potatoes in the casserole dish. Push down lightly to allow the sauce to cover all the potatoes from top to bottom. Cover the dish tightly with foil. Once the cream sauce is thickened, remove it from the heat and immediately pour it evenly over the sliced potatoes in the casserole dish. Use a spatula or spoon to gently push down on the potatoes, ensuring that the sauce reaches all layers and covers the potatoes from top to bottom. Covering the dish tightly with aluminum foil is crucial for steaming the potatoes and ensuring they cook through evenly. The foil traps the steam and moisture, preventing the potatoes from drying out and helping them become tender.
  7. Bake covered for 45 minutes. After 45 minutes, remove the foil, and bake for an additional 25-30 minutes, or until potatoes are tender and browned. Bake the scalloped potatoes covered with foil in the preheated oven for 45 minutes. After 45 minutes, carefully remove the foil. At this point, the potatoes should be mostly tender, and the sauce will have thickened further. Bake uncovered for an additional 25-30 minutes, or until the potatoes are fully tender when pierced with a fork and the top is golden brown and bubbly. Baking uncovered for the final portion allows the top to brown and caramelize, adding a delicious depth of flavor and texture. Keep an eye on the potatoes during the final baking stage to prevent them from burning. If the top starts to brown too quickly, you can loosely tent it with foil.
  8. Let the scalloped potatoes rest for 10-15 minutes and then serve warm. Allowing the scalloped potatoes to rest for 10-15 minutes after baking is important for the sauce to set slightly and for the flavors to meld together even further. During this resting time, the potatoes will also cool down slightly, making them easier to serve. Serve the scalloped potatoes warm as a side dish to your favorite main courses.

Nutrition

  • Serving Size: one normal portion
  • Calories: 350-400
  • Sugar: 5g
  • Sodium: 450mg
  • Fat: 25g
  • Saturated Fat: 15g
  • Carbohydrates: 35g
  • Fiber: 3g
  • Protein: 7g
  • Cholesterol: 75mg