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Cheesy Scalloped Potatoes Recipe

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4.4 from 249 reviews

Cheesy Scalloped Potatoes are a deliciously creamy and comforting side dish featuring tender layers of russet potatoes and onions smothered in a rich, cheesy sauce. Baked to golden perfection with a crisp top, this recipe is perfect for any occasion where you want a hearty, flavorful dish that melts in your mouth.

  • Total Time: 1 hour 45 minutes
  • Yield: 6 servings

Ingredients

Vegetables

  • 4 russet potatoes, peeled and sliced into ¼-inch slices (about 2 pounds)
  • 1 yellow onion, sliced into rings

Cheese Sauce

  • 3 tablespoons unsalted butter
  • 3 tablespoons all-purpose flour
  • ½ teaspoon kosher salt
  • 2 cups whole milk, room temperature
  • 1 ½ cups mild cheddar cheese, shredded
  • Salt and pepper to taste

Instructions

  1. Preheat and prepare the dish: Preheat the oven to 400°F. Lightly spray an 8×8-inch casserole dish with nonstick cooking spray to prevent sticking.
  2. Layer potatoes and onions: Arrange the potato slices and onion rings in the prepared baking dish, alternating between potatoes and onions to create staggered layers.
  3. Make the roux: In a medium-sized saucepan, melt the unsalted butter over medium heat. Add the flour and kosher salt, stirring constantly with a whisk for about one minute to cook the flour without browning it.
  4. Add milk and thicken sauce: Gradually stir in the room temperature whole milk. Continue cooking and stirring until the sauce thickens to a creamy consistency.
  5. Add cheese: Stir in the shredded mild cheddar cheese all at once, continuing to stir until the cheese is fully melted and the sauce is smooth, about 30-60 seconds.
  6. Combine and cover: Pour the cheese sauce evenly over the layered potatoes and onions. Cover the dish tightly with aluminum foil to trap steam during baking.
  7. Bake: Bake in the preheated oven for 85 to 90 minutes, or until the potatoes are tender when pierced with a fork.
  8. Broil for crisp topping (optional): For a golden, crisp cheese topping, change the oven setting to broil after baking and broil the dish until the top is golden brown, watching carefully to prevent burning.
  9. Season and serve: Remove from oven, season with salt and pepper to taste, and serve hot for a comforting, cheesy side dish.

Notes

  • Use a mandoline slicer for evenly thin potato slices, which helps them cook evenly.
  • Room temperature milk helps prevent lumps in the cheese sauce.
  • Cover the dish with foil during baking to ensure even cooking and prevent the top from drying out.
  • Broiling at the end is optional but adds a lovely golden crust.
  • Make sure potatoes are tender by testing with a fork before removing from the oven.
  • Author: ELLA
  • Prep Time: 15 minutes
  • Cook Time: 1 hour 30 minutes
  • Category: Side Dish
  • Method: Baking
  • Cuisine: American

Find it online: https://ellarecipe.com/cheesy-scalloped-potatoes-recipe/