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Classic Creamy Scalloped Potatoes

Classic Creamy Scalloped Potatoes layers thin-sliced potatoes and onions in a velvety, buttery sauce that bakes to a golden, gently crisp top. Each bite is rich, milky, and peppery with soft, tender centers. Serve it as a comforting side for holiday roasts, Sunday dinners, or any cozy gathering where a warm, creamy bake shines.

  • Prep30 mins
  • Cook45 mins
  • Serves6
  • DifficultyEasy
Classic Creamy Scalloped Potatoes
  1. 1

    Gather the ingredients. Preheat the oven to 375 degrees F (190 degrees C). Grease a 9x13-inch baking dish.

  2. 2

    Arrange about 1/3 of the potato slices in the bottom of the prepared baking dish; top with about 1/3 of the onion slices. Sprinkle 3 tablespoons flour over the potato and onion layer; dot with 2 tablespoons cubed butter. Season this layer with salt and black pepper. Repeat the layering two more times.

  3. 3

    Warm the milk in a saucepan over medium-low heat. Pour in enough warm milk over the mixture in the baking dish so the liquid is level with the top layer of potatoes.

  4. 4

    Bake in the preheated oven until the potatoes are tender and the sauce is bubbling with a golden brown crust, 45 to 60 minutes. Place a baking sheet under the baking dish to catch any drips; the sauce may bubble over the sides. Serve hot and enjoy!