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Au Gratin Potatoes Recipe

Lil' Luna
These cheesy Au Gratin Potatoes are the perfect side dish for any meal! With a homemade cream sauce and layers of parmesan and cheddar cheese, this Potatoes Au Gratin recipe is SO rich and creamy!
5 from 7 votes
Prep Time 10 mins
Cook Time 1 hr 30 mins
Cool 15 mins
Total Time 1 hr 55 mins
Course Side Dish
Cuisine American
Servings 6
Calories 392 kcal


  • 6 medium red potatoes sliced thinly
  • 4 tbsp butter
  • 4 tbsp flour
  • 2 cups milk
  • 1/2 cup heavy cream
  • 2 tsp salt
  • 1/4 tsp pepper
  • 2 cups shredded cheddar cheese divided
  • 1/2 cup freshly grated parmesan cheese


  • Preheat the oven to 350. 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.


Calories: 392kcalCarbohydrates: 9gProtein: 16gFat: 32gSaturated Fat: 20gCholesterol: 102mgSodium: 1246mgPotassium: 169mgSugar: 4gVitamin A: 1110IUCalcium: 471mgIron: 0.6mg
Keyword Potatoes Au Gratin
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