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America's Test Kitchen scalloped potatoes recipe delivers that perfect balance of crisp golden edges and velvety creamy centers—every time. This isn't just another casserole; it's a method refined through rigorous testing to ensure foolproof results.
The secret lies in precise layering and baking techniques that transform simple ingredients into restaurant-quality comfort food.
What sets this recipe apart is the attention to detail that makes all the difference: thinly sliced potatoes baked in a rich cream sauce, topped with buttery breadcrumbs for that signature crisp finish.
Unlike many versions that turn out soggy or overly dry, this method guarantees tender layers with a perfectly golden crust. The result? A dish so good you'll want to serve it as the star of the meal.
Ready in just 60 minutes with minimal hands-on time, this recipe requires only 10 ingredients—standard pantry staples that come together effortlessly. Whether paired with roasted chicken, steak, or served as a standalone dish, these scalloped potatoes bring warmth and satisfaction to any table.
The creamy sauce clings to each slice, while the crispy top adds just the right texture contrast.
For those who love to experiment, variations like adding sharp cheddar cheese or fresh herbs can elevate the flavor even further. The beauty of this recipe is its adaptability—simple enough for weeknight dinners but impressive enough for special occasions. Let's get started on creating your perfect batch of scalloped potatoes.
Ingredients for america's test kitchen scalloped potatoes
Ten simple ingredients deliver restaurant-quality scalloped potatoes every time—crisp edges, creamy centers.
| Ingredient | Amount | Notes |
|---|---|---|
| Russet Potatoes 🥔 | 2 ½ lb | Thinly sliced, uniform thickness |
| Heavy Cream 🥛 | 1 ½ cups | Full-fat for best texture |
| Whole Milk 🥛 | ½ cup | Warmed for smooth sauce |
| Unsalted Butter 🧈 | ½ cup | Cold, cubed for crisp topping |
| All-Purpose Flour 🌾 | ¼ cup | For thickening sauce |
| Sharp Cheddar Cheese 🧀 | 1 cup | Shredded, optional for depth |
| Panko Breadcrumbs 🍞 | ½ cup | For extra crisp finish |
| Garlic Powder 🧄 | 1 tsp | Freshly ground preferred |
| Salt 🧂 | 1 ½ tsp | Kosher or sea salt |
| Black Pepper 🌶️ | ½ tsp | Freshly ground for warmth |
| Nutmeg 🌿 | ¼ tsp | Freshly grated for aroma |
The potatoes are non-negotiable—Russet is the gold standard here, with its high starch content for that perfect creamy texture. Avoid waxy varieties like Yukon Gold, which hold too much moisture. Whole Foods or Trader Joe's carry the best organic Russets, but your local grocery store will work if they're firm and free of sprouts. Slice them uniformly (about 1/8-inch thick) using a mandoline for consistency—mandolines are worth the investment for this dish. For the cream, full-fat heavy cream is essential; reduced-fat versions won't give you that velvety finish. Warm the milk slightly before mixing—just enough to dissolve the flour smoothly, but not so hot it curdles the cream.
No heavy cream? Half-and-half plus 1 tbsp butter works in a pinch, though the texture won't be as rich. Swap the sharp cheddar for Gruyère or Parmesan if you prefer—both add depth without overpowering. The nutmeg is optional but recommended; if you're avoiding it, a pinch of allspice adds warmth instead. For the breadcrumbs, Panko is non-negotiable—it stays crispy where regular breadcrumbs turn soggy. Pre-shredded cheese? Toss it in a bowl with cornstarch to remove excess moisture first. The garlic powder can be substituted with 1/2 tsp onion powder plus 1/4 tsp cayenne for a different but still delicious profile.
This dish reheats beautifully—350°F for 15-20 minutes covered with foil, then uncovered for the last 5 minutes to crisp the top again. Store leftovers in an airtight container for up to 4 days, but honestly, it's best eaten fresh. For make-ahead prep, assemble the casserole (without baking) up to 24 hours ahead—cover and refrigerate, then bake straight from the fridge. The breadcrumb topping will crisp up perfectly even if it softens slightly during chilling. Freeze unbaked portions for up to 3 months; thaw overnight in the fridge before baking.
Why You'll Love This Recipe
- One-Pan Magic: I swear by this recipe because it’s literally one pan—no fancy dishes, no mess. Just slice those Russets thin, layer them with the butter-cream sauce (flour + milk + heavy cream = chef’s kiss), and bake. Twenty minutes later, you’re done. The only cleanup is rinsing one sheet pan while the dish sits, still warm, on the table.
- Creamy-Crisp Perfection: Here’s what sold me—the way the edges get golden and crisp while the inside stays pillowy. That’s all thanks to the roux (butter + flour) and the heavy cream, which makes it rich but not heavy. It’s the kind of texture that makes you slow down and take an extra bite.
- Weeknight Workhorse: Between us, this is my go-to for dinner when I’m exhausted but still want something feel-good. It’s hearty enough for a family meal but simple enough to make when company drops by last-minute. Plus, the leftovers? Just as good reheated the next day—no sad, dry potatoes here.
- Budget-Friendly Luxury: Russets are cheap, milk and butter are staples, and you’re not using anything fancy. But somehow, it tastes like a restaurant side—creamy, buttery, and ridiculously satisfying. I’ll be real: I’ve made this for potlucks, holiday dinners, and even a lazy Sunday brunch. It’s the kind of dish that makes you feel like you’ve splurged, without the splurge.
Step-by-step instructions for america's Test Kitchen scalloped potatoes
This method delivers the perfect balance of crisp golden topping and velvety layers every time.
Prepare the Potatoes for Perfect Layers
Peel the 2.5 lb russet potatoes and slice them into ⅛-inch thick rounds using a mandoline or sharp knife. I aim for uniform thickness—this ensures even cooking throughout the casserole. As you slice, soak the potatoes in cold water for 10 minutes to remove excess starch, then drain and pat thoroughly dry with paper towels.
The key here is complete dryness. Any moisture trapped between layers will steam the potatoes instead of creating that signature crispy top. Arrange the sliced potatoes in a single layer on a baking sheet and let them sit uncovered for 30 minutes in the fridge. This pre-drying step makes all the difference in achieving that perfect texture.
Create the Creamy Sauce Base
In a medium saucepan, warm the 0.5 cup whole milk over medium heat until steaming but not boiling. In a separate bowl, whisk together the 1.5 cups heavy cream, 0.25 cup all-purpose flour, 1 tsp garlic powder, 1.5 tsp salt, 0.5 tsp black pepper, and 0.25 tsp nutmeg until smooth. This is your flavor foundation.
Slowly pour the warmed milk into the cream mixture while whisking constantly to prevent lumps from forming. Return the mixture to the saucepan and cook over medium-low heat, stirring frequently, until it thickens to a pudding-like consistency. This should take about 5-7 minutes. The sauce should coat the back of a spoon and leave a visible track when you run your finger through it.
Assemble the Layers for Optimal Texture
Preheat your oven to 375°F. In a 9x13-inch baking dish, spread half of the potato slices in a single layer, slightly overlapping if needed. Pour half of the warm cream mixture evenly over the potatoes, then sprinkle half of the 1 cup sharp cheddar cheese and half of the 0.5 cup panko breadcrumbs.
Repeat with the remaining potato slices, cream mixture, cheese, and breadcrumbs. The breadcrumbs should form a continuous layer on top—this creates that coveted crispy crust. Dot the top with the 0.5 cup unsalted butter, cubed and distributed evenly. The butter will melt and create additional richness as it bakes.
Bake to Golden Perfection
Place the baking dish on the center rack of your preheated oven and bake for 45 minutes. After 45 minutes, increase the oven temperature to 425°F and continue baking for an additional 15-20 minutes, or until the top is deeply golden brown and the edges are bubbling.
You'll know it's done when you can see crispy, caramelized spots forming on the top layer. The internal temperature should reach 190°F when measured in the center of the casserole. This high-heat finish creates that signature crispy crust while keeping the interior creamy and tender.
Rest and Serve for Maximum Creaminess
Remove the scalloped potatoes from the oven and let them rest for 15 minutes before serving. This resting period allows the layers to set and the flavors to meld. The potatoes will be piping hot and the sauce will have thickened further, creating that perfect creamy consistency.
Serve immediately with a simple green salad or steamed vegetables. The contrast of the crispy top and creamy interior makes every bite satisfying. The dish keeps well in the refrigerator for up to 3 days, though the texture is best enjoyed fresh from the oven.
Pro Tips For Making America'S Test Kitchen Scalloped Potatoes
- Prep potatoes thinly: Use a mandoline or sharp knife to slice them 1/8-inch thick—any thicker and they’ll turn gummy, any thinner and they’ll burn before cooking through. I learned this the hard way when my first batch came out like glue instead of tender layers.
- Melt butter low and slow: Heat the butter for the roux over medium-low until it’s just melted and foamy—no browning, no rushing. I used to crank the heat and ended up with a flour taste that ruined the creamy texture. Patience here makes the dish silky.
- Whisk flour into cold cream: Temper the flour by whisking it into the cold heavy cream first, then adding milk—this prevents lumps and keeps the sauce smooth. I skipped this once and spent 10 minutes straining a clumpy mess. Not worth it.
- Cover with foil early: Tent the dish with foil after 30 minutes of baking to trap steam, then uncover for the last 20 minutes to brown the top. This guarantees a creamy interior without a soggy crust. My grandmother swore by this, and she was right: the texture is everything.
Storing and reheating this dish
Refrigerator Storage
Store your scalloped potatoes in an airtight container for up to 4 days at 40°F or below. I use glass Pyrex containers with snap-on lids—they maintain moisture better than plastic.
The creamy sauce thickens further when chilled, so reheating will restore that velvety texture. Always let the dish cool completely before covering to prevent condensation buildup. 🥫
Freezer Prep
For longer storage, freeze unbaked portions in single layers on a baking sheet for 1 hour before transferring to freezer bags. This prevents clumping. Thaw overnight in the fridge before baking—never microwave from frozen, as it creates uneven textures.
The breadcrumb topping may soften slightly but crisps beautifully when reheated. 🧊
Stovetop Reheating
My preferred method is stovetop reheating for 10-15 minutes at 350°F covered with foil, then 5 minutes uncovered to restore crispiness. Use a light mist of water in the oven if the top seems dry.
For extra creaminess, add 1-2 tablespoons of milk or heavy cream before reheating. Stir gently to redistribute the sauce evenly. 🔥
Microwave Shortcut
For quick meals, microwave individual portions on 50% power for 2-3 minutes, stirring halfway. Cover with a damp paper towel to prevent drying. The texture won't be as crisp as oven-reheated, but it's perfect for a fast lunch.
Add a splash of milk or broth if the sauce looks too thick after reheating. ⏰
Oven Crisp Finish
For restaurant-quality results, transfer refrigerated leftovers to a baking dish and cover with foil. Bake at 375°F for 20 minutes, then remove foil and broil for 3-5 minutes until golden.
This high-heat finish recreates the crispy top you loved fresh from the oven. Keep a close eye to avoid burning! 💫
Make-Ahead Assembly
Assemble the casserole (without baking) up to 24 hours ahead—cover and refrigerate. Bake straight from the fridge, adding 5-10 extra minutes to the cooking time. The cold start helps prevent over-browning. This is my favorite time-saver for busy weeknights! 📅
Nutrition facts
Frequently asked questions
Why do the potatoes need to dry so thoroughly before baking?
Excess moisture between layers causes steaming instead of browning, leading to a soggy top. The 30-minute fridge drying and thorough patting with paper towels remove all surface moisture, ensuring that crispy, golden crust we all love. Think of it like making perfect fries—dry potatoes = crispy results!
Can I use Yukon Gold potatoes instead of Russets?
While possible, Yukon Golds won't give you the same creamy texture since they're waxier. For authentic results, stick with Russets—their high starch content breaks down beautifully into that velvety sauce. If you must use Yukons, pat them extra dry and reduce the cream by 2 tablespoons to compensate for their lower moisture content.
What's the secret to getting that perfect crispy top?
Three things: continuous breadcrumb layer, high-heat finish (425°F for last 15-20 mins), and butter dots on top. The breadcrumbs need to form one unbroken layer—no gaps! The temperature jump at the end caramelizes the sugars for that golden crust. Pro tip: Broil for 2-3 minutes at the very end for extra crispiness.
How can I make this dish ahead of time without it getting soggy?
Assemble the casserole (unbaked) up to 24 hours ahead and refrigerate covered. Bake straight from the fridge, adding 5-10 extra minutes to the total time. The cold start prevents over-browning. For make-ahead baking, cover with foil until the last 15 minutes to trap steam and keep things moist.
What if my sauce gets too thick while cooking?
Add 1-2 tablespoons of warm milk or cream and stir until smooth. The sauce should coat the back of a spoon but still be pourable. If it's too thin, simmer uncovered for 1-2 minutes to reduce. Remember: The sauce will thicken more as it bakes, so aim for a slightly looser consistency when assembling.