13x9 Scalloped Potatoes Recipe for a Creamy Comfort Food

Scalloped potatoes baked in a 13×9-inch dish create a rich, creamy, and tender side dish that’s perfect for family dinners or special occasions. This classic recipe combines thinly sliced potatoes with a savory cheese sauce, baked to golden perfection, making it a crowd-pleaser every time.

Ingredients

4 pounds russet potatoes (about 4-5 large potatoes), peeled and thinly sliced
2 cups shredded sharp cheddar cheese
1 cup grated Parmesan cheese
2 cups whole milk
1 cup heavy cream
4 tablespoons unsalted butter
3 tablespoons all-purpose flour
1 teaspoon garlic powder
1 teaspoon salt
1/2 teaspoon black pepper
1 teaspoon dried thyme (optional)
Fresh parsley, chopped (for garnish)

Instructions

Preheat your oven to 375°F (190°C). Grease or butter a 13×9-inch baking dish and set aside.

In a large saucepan, melt the butter over medium heat. Whisk in the flour and cook for about 1 minute until the mixture is bubbly and slightly golden.
Gradually pour in the milk and heavy cream, whisking constantly to prevent lumps. Continue to cook and whisk until the sauce thickens, about 5-7 minutes.
Stir in garlic powder, salt, black pepper, and thyme if using. Remove from heat and stir in 1 1/2 cups of cheddar cheese and Parmesan cheese until melted and smooth.

Arrange half of the sliced potatoes in the prepared baking dish in an even layer. Pour half of the cheese sauce over the potatoes and sprinkle with half of the remaining cheddar cheese.
Add the remaining potatoes in an even layer, then pour over the rest of the cheese sauce. Top with the remaining cheddar cheese.
Cover the dish with aluminum foil and bake in the preheated oven for 45 minutes.

Remove the foil and continue baking for an additional 15-20 minutes, or until the top is golden brown and bubbly.
Let rest for 10 minutes before garnishing with chopped parsley. Serve warm and enjoy the creamy, cheesy goodness.

Tips

Potato slicing: Use a mandoline for uniform, thin slices to ensure even cooking and a beautiful layered appearance.

Cheese substitutions: Feel free to swap the cheddar for Gruyère, Monterey Jack, or a mix of cheeses for different flavor profiles.
Make ahead: Prepare the dish up to 24 hours in advance, cover tightly, and refrigerate. Bake directly from the fridge, adding an extra 10-15 minutes to the baking time.
Avoid overcooking: Keep an eye on the baking time to prevent the potatoes from becoming mushy. The dish should be tender but not falling apart.

Serving Suggestions

This scalloped potatoes dish pairs beautifully with roasted chicken, grilled steak, or baked ham. Serve alongside a crisp green salad or steamed vegetables for a complete meal. It also works well as a comforting holiday side or potluck contribution.

Variations

For a twist on the classic, consider adding cooked bacon bits, sautéed onions, or sliced mushrooms between the layers. You can also incorporate different herbs such as rosemary or thyme for added aroma. To make it vegetarian, ensure your cheese and any add-ins are free from animal rennet or use plant-based cheese alternatives.

Storage and Reheating

Store leftovers in an airtight container in the refrigerator for up to 3 days. To reheat, cover with foil and bake at 350°F (175°C) for 20-25 minutes until heated through. Alternatively, reheat individual portions in the microwave on high for 2-3 minutes, checking and stirring halfway through for even heating. Avoid freezing this dish, as potatoes can become watery and grainy upon thawing.

Frequently Asked Questions

Can I use sweet potatoes instead of regular potatoes?

Yes, sweet potatoes can be used for a sweeter, nutrient-rich variation. Slice them thinly and adjust baking time as they may cook slightly faster. Keep in mind that the flavor profile will change, and you might want to reduce the sweetness by balancing with savory herbs and cheeses.

Can I make this dish dairy-free?

Absolutely. Substitute dairy milk with almond, soy, or oat milk, and use dairy-free cheese and margarine or coconut oil. Keep in mind that the sauce may be less creamy and slightly different in texture, but it will still be flavorful.

How do I prevent the top from burning?

To avoid burning, cover the dish with foil during the initial baking phase. If the top begins to brown too quickly, tent it with foil and continue baking. Alternatively, bake at a slightly lower temperature or place the dish on a middle rack for more even heat distribution.

What is the best type of potato for scalloped potatoes?

Russet potatoes are ideal due to their starchy nature, which helps them become tender and absorb flavors well. Yukon Golds are also a good option for a creamier texture and richer flavor. Avoid waxy potatoes like red or new potatoes, as they tend to hold their shape and may not soften as well.

Can I prepare this dish in advance and freeze it?

It’s best to prepare the dish up to the baking stage, then refrigerate it for up to 24 hours. Freezing is not recommended because potatoes can develop a grainy texture when thawed. If you do freeze it, expect some change in texture and plan to bake it longer from frozen, covered, until heated through.

With this detailed recipe and helpful tips, you can create a delicious, creamy scalloped potatoes dish that will impress family and friends alike. Perfect for any occasion, this classic comfort food is sure to become a favorite in your recipe collection.

13×9 Scalloped Potatoes Recipe for a Creamy Comfort Food