Classic Potato Gratin

Classic Potato Gratin

Super delicious, easy, and everyone loves it!! This is an absolute classic side dish of French cuisine. Creamy, silky, and loaded with flavor Potato Gratin.



  • 3 ounces butter
  • 1 garlic clove minced
  • 4 tablespoons cornstarch
  • 1 teaspoon kosher salt
  • 1/2 teaspoon fresh ground pepper
  • 2 cups low-fat milk
  • 2 cups shredded white cheddar
  • 5 cups thinly sliced Yukon gold potatoes


  1. In a large saucepan, melt the butter over low heat. Stir in the garlic and cook for 1 minute. Whisk in the cornstarch, salt and pepper until smooth.
  2. Gradually add the milk and bring to a boil. Cook the sauce stirring constantly until thickened, approximately 2-3 minutes.
  3. Remove from heat and stir in 1 1/2 cups of the cheese until melted. Stir in the potatoes.
  4. Transfer to a 2-quart baking dish coated with cooking spray. Sprinkle with the remaining cheese. Cover and bake at 350°F for 30 minutes. Uncover and bake an additional 30-45 minutes or until the potatoes are tender and the sauce is golden brown and bubbling.
  5. Remove from the oven and allow it to stand 5-10 minutes before serving. 


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