I grew up watching this dish slowly bubble and brown at family gatherings, and it still wins over picky eaters and guests every time. Creamy scalloped potatoes are thinly sliced russets baked in a seasoned cream sauce with sharp cheddar and a hint of nutmeg. They’re comforting, easy to scale, and sit perfectly alongside roasted proteins. If you want a classic pairing for a weeknight meal, try serving it with my creamy herb chicken with mashed potatoes for an all-out comfort spread.
What makes this recipe special
This version leans on simple, pantry-friendly ingredients but pays attention to texture. Using russet potatoes gives a fluffy inside once baked, while thin 1/8 inch slices let the cream penetrate and thicken into a silky sauce. Sharp cheddar brings a bright, tangy finish and Parmesan on top adds a restrained nutty crust. Make it for holiday sides, a cozy dinner, or any time you want an indulgent but straightforward casserole that serves a crowd.
Step-by-step overview
You’ll prep the potatoes and onions, whisk the cream with seasonings, layer everything in a buttered 9×13 dish, then bake covered until tender and finish uncovered to brown the top. Total hands-on time is about 20 to 30 minutes, and baking takes roughly 75 to 80 minutes. Resting after baking lets the sauce thicken so slices hold together when plated.
What you’ll need
- 4 large russet potatoes, peeled and thinly sliced (about 2 pounds)
- 1 medium onion, thinly sliced
- 2 cups heavy cream
- 1 cup shredded sharp cheddar cheese
- 1 teaspoon garlic powder
- 1 teaspoon salt
- 1/2 teaspoon black pepper
- 1/4 teaspoon nutmeg
- 2 tablespoons unsalted butter, for greasing the dish
- 1/4 cup grated Parmesan cheese, optional
Ingredient notes: russets are ideal for this texture; Yukon Golds work too and give a creamier mouthfeel. If you prefer a milder cheese, swap half the cheddar for Gruyere or fontina. For a lighter version, use half-and-half, but expect a thinner sauce.
Step-by-step instructions
Preheat the oven to 375°F (190°C).
Peel the potatoes and slice them about 1/8 inch thick. A mandoline makes quick work of this. Place the slices in a bowl of cold water to draw out excess starch and keep them from browning. Drain and pat dry before layering.
Whisk the heavy cream with garlic powder, salt, black pepper, and nutmeg in a large bowl until evenly combined. Heat is not needed, but warm cream will speed up baking slightly.
Grease a 9×13 inch baking dish with the butter so the potatoes do not stick.
Layer half of the potato slices in an even layer. Scatter half of the sliced onion over the potatoes. Spoon half of the cream mixture across the surface. Sprinkle half of the cheddar cheese evenly.
Repeat: add the remaining potato slices, the rest of the onion, the remaining cream, and finish with the remaining cheddar. Smooth the top so the cream covers the edges. Sprinkle Parmesan on top if using.
Cover the dish tightly with foil and bake for 45 minutes. Remove the foil and bake another 30 to 35 minutes until the top is golden and the potatoes are tender when pierced with a knife. If the top browns too fast, loosely tent foil.
Let the casserole rest for 10 minutes before serving so the sauce sets and slices hold their shape.
Best ways to enjoy it
Serve slices warm on a plate next to roasted or grilled mains, or place the baking dish on the table for family-style serving. For a full comfort-food meal, pair it with roasted vegetables and a crisp salad to cut through the richness. You can also balance heavy flavors by serving it alongside lighter proteins like roasted chicken or turkey. For an alternate hearty pairing, try it with creamy beef and shells for a stick-to-your-ribs dinner.
How to store & freeze
Cool leftovers to room temperature no longer than two hours after baking. Cover and refrigerate for up to 3 to 4 days. Reheat single portions in the microwave until steaming, or reheat a whole dish covered with foil at 350°F (175°C) until warmed through, about 20 to 30 minutes. To freeze, wrap the cooled casserole tightly in foil and place in a freezer-safe container for up to 3 months. Thaw overnight in the fridge before reheating. Always reheat to an internal temperature of 165°F (74°C) for food safety.
Pro chef tips
- Slice evenly: a mandoline gives uniform 1/8 inch slices that bake consistently.
- Draw out starch: soaking sliced potatoes in cold water prevents gluey, gummy sauce. Dry slices well before layering.
- Warm the cream: bringing the cream mixture to room temperature or slightly warm before pouring reduces oven time and helps the sauce thicken sooner.
- Test for doneness: poke the center with a knife. It should slide in easily and the liquid should be bubbling gently.
- Let it rest: the 10-minute rest is crucial. Cutting too soon yields a runny casserole.
Different ways to try it
- Add herbs: fold in chopped thyme or chives for brightness.
- Make it lighter: swap half the heavy cream for whole milk or half-and-half, but reduce baking time and expect a looser sauce.
- Extra crispy top: switch to broil for the last 2 to 3 minutes, watching closely so it does not burn.
- Dairy-free option: use full-fat coconut milk and a dairy-free shredded cheese, though flavor and texture will change.
Common questions
Can I use milk instead of heavy cream?
Yes, you can substitute whole milk or half-and-half to reduce richness. The sauce will be thinner and may not set as firmly. To help thicken it, simmer the cream mixture briefly to reduce it before pouring, or add 1 tablespoon of flour to the cream and whisk until smooth.
How far ahead can I assemble this?
You can assemble the casserole, cover it tightly, and refrigerate for up to 24 hours before baking. If baking from chilled, add 10 to 15 minutes to the covered baking time to ensure potatoes cook through.
How do I know the potatoes are done?
Insert a knife into the center. It should slide in with little resistance. The cream should be bubbling and the top lightly browned. If the center still resists, cover and bake 10 to 15 more minutes before checking again.
Can I freeze leftovers?
Yes. Cool the casserole, wrap tightly, and freeze up to 3 months. Thaw overnight in the refrigerator and reheat covered at 350°F until hot throughout.
Creamy Scalloped Potatoes
Ingredients
Method
- Preheat the oven to 375°F (190°C).
- Peel the potatoes and slice them about 1/8 inch thick. A mandoline makes quick work of this. Place the slices in a bowl of cold water to draw out excess starch and keep them from browning. Drain and pat dry before layering.
- Whisk the heavy cream with garlic powder, salt, black pepper, and nutmeg in a large bowl until evenly combined. Heat is not needed, but warm cream will speed up baking slightly.
- Grease a 9x13 inch baking dish with the butter so the potatoes do not stick.
- Layer half of the potato slices in an even layer. Scatter half of the sliced onion over the potatoes. Spoon half of the cream mixture across the surface. Sprinkle half of the cheddar cheese evenly.
- Repeat: add the remaining potato slices, the rest of the onion, the remaining cream, and finish with the remaining cheddar. Smooth the top so the cream covers the edges. Sprinkle Parmesan on top if using.
- Cover the dish tightly with foil and bake for 45 minutes. Remove the foil and bake another 30 to 35 minutes until the top is golden and the potatoes are tender when pierced with a knife. If the top browns too fast, loosely tent foil.
- Let the casserole rest for 10 minutes before serving so the sauce sets and slices hold their shape.
