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The Ultimate Creamy Potatoes Au Gratin Recipe (Restaurant Quality)

A close-up slice of creamy potatoes au gratin showing layered potatoes and a deeply browned, cheesy crust.
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Make restaurant-style potatoes au gratin that are creamy, cheesy, and easy to prepare. This recipe delivers decadent comfort food perfect for any dinner or holiday gathering.

Ingredients

Scale
  • 3 lbs Russet potatoes, peeled and thinly sliced
  • 2 cups heavy cream
  • 1 cup whole milk
  • 4 cloves garlic, minced
  • 1 teaspoon salt
  • 1/2 teaspoon black pepper
  • 1/4 teaspoon nutmeg
  • 1 cup Gruyere cheese, shredded
  • 1/2 cup Parmesan cheese, grated
  • 2 tablespoons unsalted butter, softened

Instructions

  1. Preheat your oven to 375°F (190°C). Grease a 9×13 inch baking dish with softened butter.
  2. In a medium saucepan, combine the heavy cream, milk, minced garlic, salt, pepper, and nutmeg. Heat over medium heat until the mixture just begins to simmer. Remove from heat.
  3. Arrange one-third of the sliced potatoes in an even layer in the prepared baking dish.
  4. Pour one-third of the warm cream mixture evenly over the potatoes. Sprinkle with one-third of the Gruyere and Parmesan cheeses.
  5. Repeat the layering process two more times: potatoes, cream mixture, and then cheese.
  6. Cover the baking dish tightly with aluminum foil.
  7. Bake for 45 minutes covered.
  8. Remove the foil. Increase the oven temperature to 400°F (200°C). Bake uncovered for an additional 20 to 30 minutes, or until the top is golden brown and bubbly and the potatoes are tender when pierced with a fork.
  9. Let the potatoes au gratin rest for 10 minutes before slicing and serving.

Notes

  • For a copycat Ruth’s Chris style, use a blend of sharp cheddar and Gruyere for maximum flavor.
  • Slice potatoes uniformly thin, about 1/8 inch thick, for even cooking. A mandoline slicer works best for this.
  • If you prefer a richer flavor, substitute half of the milk with half-and-half.
  • You can make this creamy potatoes au gratin recipe ahead of time; cover and refrigerate after assembling, then add 15 minutes to the covered baking time.

Nutrition

Find it online: https://cookingbyfelix.com/potatoes-au-gratin-ultimate-creamy-recipe/