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A scoop of Au Gratin potatoes being taken out of a baking dish with a large metal serving spoon
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5 from 7 votes

Homemade Au Gratin Potatoes

Learn how to make the perfect homemade au gratin potatoes. This simple but tasty side dish can be served with steak, chicken, or fish.
Prep Time15 minutes
Cook Time50 minutes
Total Time1 hour 5 minutes
Course: Side Dish
Cuisine: French
Keyword: Dauphinoise, Side, Side Dish
Servings: 8
Calories: 321kcal
Author: Echo Blickenstaff

Equipment

  • Casserole dish

Ingredients

  • 7 large Yukon Gold potatoes peeled and sliced thin
  • 1 clove garlic cut in half
  • 1 ½ cups heavy cream
  • ½ cup milk
  • salt and pepper
  • 4 ounces Gruyere cheese grated

Instructions

  • Preheat oven to 375 degrees. Peel and slice the potatoes. Place the slices of potatoes in a bowl filled with cold water as you cut them so they don't turn brown.
    Thinly sliced and peeled potatoes in a large bowl of water
  • Rub the two halves of garlic on the sides and bottom of a 2.5 liter or 3-quart casserole dish. Spread butter along the sides and bottom of the dish.
    A square baking dish rubbed with garlic and butter
  • Heat the heavy cream and milk on medium heat until it comes to a simmer.
    Heavy cream and milk mixed together and heated in a saucepan
  • Drain the water from the sliced potatoes. Layer half of the sliced potatoes on the bottom of the dish and top with salt and pepper.
    A layer of thinly sliced potatoes in the bottom of a baking dish topped with salt and pepper
  • Pour half of the heated cream mixture over the potatoes, and sprinkle half of the cheese, then repeat all the layers again.
    Unbaked Au Gratin potatoes in a baking dish before they go in the oven
  • Bake until potatoes are soft and golden brown on top, about 50 to 55 minutes.
    Au Gratin Potatoes baked in a square glass baking dish

Nutrition

Calories: 321kcal | Carbohydrates: 21g | Protein: 9g | Fat: 23g | Saturated Fat: 14g | Cholesterol: 82mg | Sodium: 99mg | Potassium: 679mg | Fiber: 4g | Sugar: 1g | Vitamin A: 859IU | Vitamin C: 17mg | Calcium: 234mg | Iron: 5mg