I still remember the first time I baked these creamy scalloped potatoes; the kitchen filled with a warm, nutty aroma and the top browned into a perfect golden crust. This dish is simple comfort food that doubles as an elegant side or a hearty vegetarian main. It’s the sort of recipe you make when you want something satisfying without fuss, and if you enjoy rich, oven-baked potato dishes you might also like this creamy chicken with potatoes and carrots for a one-pan dinner.
Why you’ll love this dish
Scalloped potatoes are a crowd-pleaser for good reasons. They use inexpensive pantry staples and require little hands-on time. Thin slices of russet potatoes soak up a seasoned cream so each bite is silky and flavorful. This casserole is great for weeknight dinners, potlucks, or any time you want a warm, comforting side that pairs well with roasted vegetables or simply a green salad. The shortcut of using garlic powder and shredded cheddar keeps prep quick while still delivering classic flavor.
Step-by-step overview
You’ll slice potatoes thin, whisk a seasoned cream, layer potatoes and onions with cheese in a greased baking dish, cover and bake until tender, then finish uncovered for a golden top. Total hands-on time is about 20 to 30 minutes, mostly slicing and mixing. Baking takes about 75 to 80 minutes total, plus a short resting period so the dish sets before serving.
What you’ll need
- 4 large russet potatoes, peeled and thinly sliced (about 1/8 inch thick)
- 1 medium onion, thinly sliced
- 2 cups heavy cream
- 1 cup shredded sharp cheddar cheese
- 1 teaspoon garlic powder
- 1 teaspoon salt, adjust to taste
- 1/2 teaspoon black pepper
- 1/4 teaspoon nutmeg
- 2 tablespoons unsalted butter, for greasing the dish
- 1/4 cup grated Parmesan cheese, optional
Notes and substitutions:
- Swap sharp cheddar for Gruyere or fontina for a more gourmet flavor.
- For a lighter version, use half-and-half plus 1 tablespoon flour whisked in to thicken, though texture will be slightly different.
- A mandoline makes uniform 1/8 inch slices fast and consistent. If you don’t have one, use a sharp knife and take your time.
How to prepare it
- Preheat the oven to 375°F (190°C).
- Peel the potatoes and slice them about 1/8 inch thick. Place slices in a large bowl of cold water to remove excess starch and keep them from browning.
- In a bowl, whisk the heavy cream with garlic powder, salt, black pepper, and nutmeg until smooth and combined.
- Grease a 9×13-inch baking dish with the unsalted butter so the potatoes do not stick.
- Arrange half of the potato slices in a single even layer in the dish. Scatter half of the onion over the potatoes. Pour half of the cream mixture evenly over the layer. Sprinkle half of the shredded cheddar over the top.
- Repeat with the remaining potato slices, the rest of the onion, the remaining cream, and the remaining cheddar. If using Parmesan, sprinkle it on top for extra browning and flavor.
- Cover the dish tightly with aluminum foil and bake for 45 minutes. This traps steam and helps the potatoes become tender.
- Remove the foil and bake uncovered for an additional 30 to 35 minutes, until the top is golden brown and the potatoes are tender when pierced with a fork.
- Let the casserole rest for 10 minutes before serving so the cream sets and the layers hold together.
How to plate and pair
Slice the scalloped potatoes into squares and serve them warm straight from the dish. They pair beautifully with a crisp green salad, steamed green beans, or roasted root vegetables. For a heartier plate, serve alongside roasted chicken or try a one-pan meal inspiration like this creamy chicken with potatoes and carrots for a complementary flavor profile.
Storage and reheating tips
Store leftovers in an airtight container in the refrigerator for up to 3 to 4 days. Cool the casserole to room temperature but do not leave it out more than 2 hours for food safety. To reheat, place individual portions in a small ovenproof dish, add a splash of cream or milk to prevent drying, and bake at 350°F (175°C) until heated through, about 15 to 20 minutes. You can also reheat in the microwave on medium power, stirring once mid-way to ensure even heating. To freeze, wrap tightly or transfer to a freezer-safe container and freeze for up to 2 months. Thaw overnight in the refrigerator before reheating.
Pro chef tips
- Slice potatoes uniformly for even cooking. A mandoline makes this quick and consistent.
- Soak sliced potatoes in cold water for 10 minutes then drain and pat dry to remove excess starch and prevent gluey texture.
- Warm the cream slightly before pouring over layers; that jump-starts the baking and can reduce total bake time by a few minutes.
- If the top browns too quickly during the uncovered bake, tent the dish loosely with foil.
- Let the dish rest after baking; cool cream firms up and the casserole slices cleanly.
Creative twists
- Add thin slices of sweet potato with the russets for a colorful twist.
- Stir in a handful of chopped fresh herbs like thyme or chives into the cream for a bright note.
- Swap some of the cheddar for Gruyere for a nuttier, more complex flavor.
- Make it dairy-free by using full-fat coconut milk and a dairy-free cheese; note the flavor will be slightly different.
Helpful answers
How long does this take from start to finish?
Hands-on time is about 20 to 30 minutes for slicing and assembling. Bake time is about 75 to 80 minutes. Include a 10-minute resting period, so plan roughly 1 hour 40 minutes total.
Can I prepare this ahead of time?
Yes. Assemble the casserole, cover tightly, and refrigerate for up to 24 hours before baking. If you want to prep and partially cook, bake covered for 20 minutes, cool, then refrigerate and finish baking when ready.
Will the potatoes be mushy if I slice too thin?
If you slice very thin, the potatoes can become soft but not necessarily mushy if baked correctly. Uniform slices near 1/8 inch cook evenly and hold their shape. Avoid paper-thin slices unless you prefer a more gratin-like texture.
Is it safe to freeze after baking?
Yes. Cool the dish completely, then wrap tightly and freeze for up to 2 months. Thaw overnight in the refrigerator before reheating in a 350°F oven until heated through.
How can I make this lighter?
Use half-and-half mixed with a tablespoon of flour to thicken, or reduce the cream slightly and add a cup of low-sodium vegetable or chicken broth. The texture will be lighter but still satisfying.
Creamy Scalloped Potatoes
Ingredients
Method
- Preheat the oven to 375°F (190°C).
- Peel the potatoes and slice them about 1/8 inch thick. Place slices in a large bowl of cold water to remove excess starch and keep them from browning.
- In a bowl, whisk the heavy cream with garlic powder, salt, black pepper, and nutmeg until smooth and combined.
- Grease a 9×13-inch baking dish with the unsalted butter.
- Arrange half of the potato slices in a single even layer in the dish. Scatter half of the onion over the potatoes. Pour half of the cream mixture evenly over the layer. Sprinkle half of the shredded cheddar cheese over the top.
- Repeat with the remaining potato slices, onion, cream mixture, and cheddar cheese. If using Parmesan cheese, sprinkle it on top.
- Cover the dish tightly with aluminum foil and bake for 45 minutes.
- Remove the foil and bake uncovered for an additional 30 to 35 minutes, until the top is golden brown and potatoes are tender when pierced with a fork.
- Let the casserole rest for 10 minutes before serving.
