Scalloped Potatoes Au Gratin

Potatoes Au Gratin

Potatoes, cream, 2 cheeses, and onion are delicious in this simple, but classic dish that's always a hit with everyone at the table.

Course Side Dish
Cuisine French, Gluten Free
Prep Time 20 minutes
Cook Time 1 hour 15 minutes
Resting time 15 minutes
Total Time 1 hour 50 minutes
Servings 8
Calories 449 kcal
Author Colleen


  • 1 tbsp butter
  • 3 lb russet potatoes peeled & sliced 1/8" thick
  • 1 onion large, thinly sliced
  • 1 cup whipping cream
  • 2 garlic cloves minced
  • 2 cups Gruyere cheese grated
  • 1 cup cheddar cheese grated
  • 2 tbsp parsley chopped


  1. Preheat oven to 350°

  2. Butter a 12" cast iron skilled or baking dish.

  3. stir the garlic into the whipping cream.

  4. arrange 1/3 of the potatoes in the dish, overlapping them. layer 1/2 of the onion slices evenly over the potatoes. Pour 1/3 cup whipping cream over the layer, and spread 1/2 the Gruyere cheese. 

  5. Repeat the process in the step above.

  6. Arrange the remaining potatoes evenly over the top, and pour over the last 1/3 cup whipping cream, pressing the potatoes down so they are submerged in the liquid.  Arrange the cheddar cheese over the top.

  7. Bake 1 hr 15 minutes, until potatoes are tender and top is starting to brown.  Remove from oven and garnish with parsley.

  8. Let stand 15 minutes before slicing and serving.

Recipe Notes

Because cheese is salty, I haven't added and salt to the recipe, but if you prefer to, sprinkle salt and pepper on each layer of potatoes.

Additions such as crumbled bacon, diced ham, mushrooms, or other veggies are delicious in this dish.



Nutrition Facts
Potatoes Au Gratin
Amount Per Serving (1 g)
Calories 449 Calories from Fat 243
% Daily Value*
Fat 27g42%
Saturated Fat 17g85%
Cholesterol 95mg32%
Sodium 232mg10%
Potassium 797mg23%
Carbohydrates 33g11%
Fiber 2g8%
Sugar 1g1%
Protein 17g34%
Vitamin A 1015IU20%
Vitamin C 12.4mg15%
Calcium 483mg48%
Iron 1.7mg9%
* Percent Daily Values are based on a 2000 calorie diet.