Creamy Scalloped Potatoes

Creamy Scalloped Potatoes are the ultimate comfort food side dish, featuring tender layers of thinly sliced potatoes baked in a rich, velvety garlic cream sauce until perfectly tender and golden. Every bite is infused with buttery flavor, fresh garlic, onions, herbs, and a luxurious blend of cream and cheese that melts beautifully between each layer. This classic casserole is a holiday favorite and pairs wonderfully with roasted chicken, baked ham, steak, pork chops, or turkey. Whether you’re preparing a cozy family dinner or a festive holiday feast, these homemade scalloped potatoes are always a crowd-pleaser. Rich, creamy, cheesy, and irresistibly comforting, this easy recipe is simple enough for weeknights yet elegant enough for special occasions.

Ingredients For the Potatoes

3 pounds Yukon Gold or Russet potatoes, thinly sliced (⅛-inch thick)
2 tablespoons unsalted butter
1 small onion, thinly sliced
3 cloves garlic, minced
Salt and freshly ground black pepper, to taste

For the Cream Sauce

3 tablespoons butter
3 tablespoons all-purpose flour
2 cups whole milk
1 cup heavy cream
1 teaspoon Dijon mustard (optional)
1 teaspoon garlic powder
½ teaspoon onion powder
1 teaspoon fresh thyme (or ½ teaspoon dried thyme)
½ teaspoon paprika
Salt and black pepper to taste

For the Cheese

1½ cups shredded sharp cheddar cheese
½ cup grated Parmesan cheese

Optional Garnish

Fresh parsley, chopped
Fresh thyme leaves
Extra Parmesan cheese

Step-by-Step Instructions

Step 1: Prepare the Oven

Preheat your oven to 375°F (190°C). Lightly grease a 9×13-inch baking dish with butter or cooking spray.

Step 2: Slice the Potatoes

Wash and peel the potatoes if desired. Slice them into thin, even rounds using a sharp knife or mandoline for uniform cooking.

Step 3: Cook the Onion

Melt 2 tablespoons of butter in a skillet over medium heat. Add the sliced onion and cook for about 5 minutes until softened. Stir in the minced garlic and cook for another minute.

Step 4: Make the Cream Sauce

In a separate saucepan, melt 3 tablespoons of butter over medium heat. Whisk in the flour and cook for 1 minute. Slowly whisk in the milk and heavy cream until smooth. Stir in the Dijon mustard, garlic powder, onion powder, thyme, paprika, salt, and black pepper. Continue stirring until the sauce thickens slightly, about 4–5 minutes. Remove from the heat and stir in half of the cheddar cheese and half of the Parmesan until melted.

Step 5: Layer the Potatoes

Arrange one-third of the sliced potatoes in the prepared baking dish. Season lightly with salt and pepper. Top with one-third of the cooked onions and garlic, then spoon one-third of the cream sauce over the potatoes. Repeat the layers until all the ingredients have been used.

Step 6: Add the Cheese

Sprinkle the remaining cheddar and Parmesan cheeses evenly over the top.

Step 7: Bake

Cover the baking dish tightly with aluminum foil and bake for 50 minutes. Remove the foil and continue baking for another 25–30 minutes, or until the potatoes are fork-tender and the top is golden brown and bubbling.

Step 8: Rest and Serve

Allow the scalloped potatoes to rest for 10–15 minutes before serving. This helps the sauce thicken and makes the casserole easier to slice. Garnish with fresh parsley or thyme if desired.

Tips & Notes

Yukon Gold potatoes create a buttery texture, while Russet potatoes produce a creamier casserole.
Slice the potatoes evenly for consistent cooking.
Freshly grate your cheese for the smoothest, creamiest sauce.
Add cooked bacon, diced ham, or caramelized onions for extra flavor.
For a crispier top, broil the casserole for 2–3 minutes at the end of baking.
Leftovers taste even better the next day and reheat beautifully.
Store in the refrigerator for up to 4 days or freeze for up to 2 months.

Frequently Asked Questions

Can I make scalloped potatoes ahead of time?
Yes. Assemble the casserole up to 24 hours ahead, cover tightly, and refrigerate. Bake when ready to serve, adding an extra 10–15 minutes if baking straight from the refrigerator.

What’s the difference between scalloped potatoes and au gratin potatoes?
Traditional scalloped potatoes are baked in a creamy sauce, while au gratin potatoes usually contain more cheese throughout the layers and often have a crispy breadcrumb topping.

Can I substitute half-and-half for heavy cream?
Yes. The sauce will still be creamy but slightly lighter in texture.

Why are my potatoes still firm?
They may have been sliced too thick. Thin, even slices ensure the potatoes cook through completely.

What main dishes pair well with this recipe?
Scalloped potatoes are delicious with baked ham, roast chicken, pork loin, steak, meatloaf, turkey, or grilled vegetables.

Servings & Nutrition

Servings: 8

Prep Time: 20 minutes

Cook Time: 1 hour 20 minutes

Rest Time: 10 minutes

Total Time: 1 hour 50 minutes

Approximate Nutrition (Per Serving)

Calories: 385
Protein: 12 g
Carbohydrates: 33 g
Fat: 24 g
Saturated Fat: 14 g
Fiber: 3 g
Sugar: 4 g
Sodium: 420 mg

Creamy Scalloped Potatoes are a timeless comfort food that never goes out of style. With tender layers of potatoes baked in a rich garlic cream sauce and topped with golden, bubbly cheese, this classic side dish is perfect for holidays, Sunday dinners, or any meal that calls for something warm, hearty, and irresistibly delicious. Every creamy, cheesy bite is pure comfort and guaranteed to have everyone coming back for seconds.