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Cheesy Au Gratin Potatoes – A Cheesey Potatoes Easy Recipe Favorite

Creamy, golden, and irresistibly cheesy, these au gratin potatoes are the perfect comfort side dish.
Prep Time20 minutes
Cook Time1 hour 10 minutes
Total Time1 hour 30 minutes
Course: Side Dish
Cuisine: American
Keywords: cheesey potatoes easy recipe, comfort food, dinner recipes, easy recipes, homemade pretzels soft easy recipes, quick and easy recipes, recipes for dinner
Servings: 6 servings
Author: Betty

Ingredients

  • 2 tablespoons butter
  • 2 tablespoons all-purpose flour
  • 1 1/2 cups milk (whole or 2%)
  • 1 teaspoon garlic powder
  • 1/2 teaspoon onion powder
  • Salt and freshly ground black pepper, to taste
  • 1/2 cup shredded sharp cheddar cheese
  • 1/2 cup shredded gruyère cheese
  • 2 1/2 pounds Yukon gold potatoes, thinly sliced
  • 1 tablespoon fresh chopped thyme (optional)

Instructions

  1. Preheat your oven to 375°F and grease a 9x9-inch or similar baking dish.
  2. Melt butter in a medium saucepan over medium heat. Whisk in the flour and cook for about 1 minute.
  3. Gradually whisk in the milk. Add garlic powder, onion powder, salt, and pepper. Cook until thickened, about 3–5 minutes.
  4. Remove from heat and stir in both cheeses until melted and smooth.
  5. Layer half of the sliced potatoes in the baking dish. Pour half of the cheese sauce over the top.
  6. Repeat with the remaining potatoes and cheese sauce. Sprinkle fresh thyme over the top if using.
  7. Cover with foil and bake for 45 minutes. Uncover and bake an additional 20–25 minutes until golden and bubbly.
  8. Let rest for 10 minutes before serving.