Go Back
–+ servings
Potato Cheese Gratin

Potato Cheese Gratin

Discover the ultimate comfort food with our Potato Cheese Gratin recipe. Creamy, cheesy, and golden-brown layers perfect for any occasion. Try it today!
Print Recipe Pin Recipe
Prep Time 20 minutes
Cook Time 45 minutes
Resting Time 10 minutes
Total Time 1 hour 15 minutes
Servings: 6 people
Calories: 350
Ingredients Equipment Method Nutrition Notes

Ingredients
  

  • 3 tablespoons butter
  • 1 small onion, finely chopped
  • 1 clove garlic, minced or grated
  • 1 teaspoon fresh thyme, chopped or ½ teaspoon dried thyme
  • 3 tablespoons gluten-free flour or regular flour if not gluten-free
  • 1 cup milk
  • 1 cup Gruyère cheese, grated
  • a pinch nutmeg optional
  • to taste salt
  • to taste pepper
  • 4 pounds potatoes, thinly sliced

Equipment

  • Large Skillet
  • Whisk
  • Spatula
  • Baking Dish preferably ceramic or glass
  • Mandoline Slicer optional

Method
 

  1. Preheat your oven to 350°F (180°C) and melt the butter in a large skillet over medium heat.
  2. Add the chopped onion and sauté for 3-5 minutes until translucent.
  3. Stir in the minced garlic and thyme; cook for another minute.
  4. Sprinkle the flour into the skillet and cook for about a minute until slightly golden.
  5. Slowly pour in milk, whisking continuously until the sauce thickens (1-2 minutes).
  6. Lower the heat and stir in half of the Gruyère cheese; season with salt, pepper, and nutmeg if desired.
  7. Spread a thin layer of sauce in a baking dish and layer in the sliced potatoes, repeating with sauce until all are used.
  8. Top with remaining sauce and Gruyère cheese before baking.
  9. Bake for 45–60 minutes until the top is golden brown and potatoes are tender. Allow to rest for 10 minutes before serving.

Nutrition

Calories: 350kcalCarbohydrates: 40gProtein: 10gFat: 18gSaturated Fat: 10gCholesterol: 40mgSodium: 420mgPotassium: 800mgFiber: 4gSugar: 2gVitamin A: 300IUVitamin C: 10mgCalcium: 250mgIron: 2mg

Notes

For a richer dish, replace milk with heavy cream. Feel free to mix different cheeses like mozzarella or cheddar for variation. Adding crispy bacon or sautéed vegetables can elevate the flavor. Leftovers can be stored in an airtight container in the fridge for up to 3 days or frozen for up to 2 months. To enhance flavors, consider garnishing with fresh thyme or paprika before serving.
Tried this recipe?Let us know how it was!