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Dad’s Creamy & Cheesy Au Gratin Potatoes


  • Author: Sally Thompson
  • Total Time: 1 hour 15 minutes
  • Yield: 6 servings 1x

Description

These Creamy & Cheesy Au Gratin Potatoes are the ultimate comfort food, perfect for family dinners, holidays, or any time you crave something rich and indulgent. Made with thinly sliced potatoes layered in a velvety cheese sauce and baked to golden perfection, this dish is sure to be a crowd-pleaser.


Ingredients

Scale
  • 4 large Russet or Yukon Gold potatoes, peeled and thinly sliced
  • 1 ½ cups sharp cheddar cheese, shredded
  • 1 cup Gruyère cheese, shredded
  • 2 cups heavy cream
  • 1 cup whole milk
  • 3 tbsp butter
  • 2 cloves garlic, minced
  • 2 tbsp all-purpose flour
  • 1 tsp salt
  • ½ tsp black pepper
  • ¼ tsp ground nutmeg (optional)
  • Fresh parsley for garnish

Instructions

  1. Preheat oven to 375°F (190°C). Grease a 9×13-inch baking dish with butter.
  2. Prepare the potatoes by peeling and slicing them thinly (about 1/8-inch thick).
  3. Make the cheese sauce: In a saucepan over medium heat, melt the butter and sauté the garlic until fragrant. Whisk in the flour and cook for 1 minute. Gradually add the milk and heavy cream, whisking continuously until the sauce thickens.
  4. Add the cheese: Remove the saucepan from heat and stir in the cheddar and Gruyère until melted. Season with salt, pepper, and nutmeg if using.
  5. Layer the potatoes: Arrange half of the sliced potatoes in the greased baking dish. Pour half of the cheese sauce over them. Repeat with the remaining potatoes and sauce.
  6. Bake covered for 45 minutes. Remove the foil and bake uncovered for another 15-20 minutes, until golden and bubbly.
  7. Rest & Serve: Let the dish sit for 10 minutes before serving. Garnish with fresh parsley and enjoy!

Notes

  • For extra flavor, add crispy bacon or caramelized onions between the layers.
  • Use a mandoline slicer for even potato slices.
  • To store, refrigerate leftovers in an airtight container for up to 3 days. Reheat in a 350°F oven until warm.
  • To freeze, wrap tightly and store for up to 1 month. Thaw overnight before reheating.
  • Prep Time: 15 minutes
  • Cook Time: 60 minutes
  • Category: Side Dish