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5 from 13 votes

Potatoes Au Gratin Recipe

With a homemade cream sauce, and layers of parmesan and cheddar cheese, these potatoes au gratin are so rich and creamy!
Prep Time10 minutes
Cook Time1 hour 30 minutes
Cool15 minutes
Total Time1 hour 55 minutes
Course: Side Dish
Cuisine: American
Servings: 6
Author: Lil' Luna

Ingredients

  • 6 medium red potatoes sliced thinly
  • 4 tablespoons butter
  • 4 tablespoons all-purpose flour
  • 2 cups milk
  • ½ cup heavy whipping cream
  • 2 teaspoons salt
  • ¼ teaspoon pepper
  • 2 cups shredded cheddar cheese divided
  • ½ cup freshly grated parmesan cheese

Instructions

  • Preheat the oven to 350°F. Spray a 9 x 9 baking dish with cooking spray and set aside.
  • In a medium saucepan, melt the butter. Whisk in the flour, and cook 3-4 minutes, until golden brown. Slowly add the milk and cream, whisking constantly to prevent lumps. Cook an additional 5-6 minutes, or until thickened. Remove from heat and stir in the salt and pepper and one cup of the cheddar cheese.
  • Layer one-third of the potato slices as evenly as possible in the prepared baking dish. Pour one-third of the sauce over the potatoes and spread to cover. Sprinkle ⅓ of the parmesan cheese and ⅓ of the remaining cheddar cheese over the top. Repeat the layers twice more.
  • Cover with foil and bake for one hour. Remove foil and bake for an additional 20-30 minutes, or until golden brown and bubbling on top. Let cool 15-20 minutes before serving.

Video

Nutrition

Calories: 392kcal | Carbohydrates: 9g | Protein: 16g | Fat: 32g | Saturated Fat: 20g | Cholesterol: 102mg | Sodium: 1246mg | Potassium: 169mg | Sugar: 4g | Vitamin A: 1110IU | Calcium: 471mg | Iron: 0.6mg