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Rich and Creamy Potatoes au Gratin

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Rich and creamy Potatoes au Gratin made with thinly sliced Yukon Gold potatoes, garlic, heavy cream, nutmeg, and Gruyère cheese. Baked to golden perfection, it’s a luxurious side dish perfect for holidays or special dinners.

  • Author: Sophia
  • Prep Time: 20 minutes
  • Cook Time: 1 hour
  • Total Time: 1 hour 30 minutes
  • Yield: 8 servings
  • Category: Side Dish
  • Method: Baked
  • Cuisine: French
  • Diet: Vegetarian

Ingredients

  • 3 pounds Yukon Gold potatoes, peeled and very thinly sliced
  • 3 cloves garlic, minced
  • ¾ teaspoon salt
  • 1 cup heavy cream, divided
  • Freshly ground black pepper, to taste
  • Freshly grated nutmeg, to taste
  • 2 cups freshly shredded Gruyère cheese, divided

Instructions

  1. Preheat the oven to 350 °F (175 °C).
  2. In a large pot, combine the sliced potatoes, minced garlic, and salt. Cover with water and bring to a boil. Reduce heat and simmer until just tender, about 8–10 minutes. Drain carefully.
  3. Layer half of the cooked potatoes into a 9×13-inch baking dish. Pour over ½ cup of the heavy cream, season with pepper and nutmeg, then sprinkle 1 cup of Gruyère cheese.
  4. Add remaining potatoes on top. Pour the remaining ½ cup cream, season again with pepper and nutmeg, and top with the remaining 1 cup of Gruyère.
  5. Bake for about 1 hour, until the top is golden and the potatoes are fork-tender.
  6. Let rest for a few minutes before serving to allow the dish to set.

Notes

  • Use a mandoline slicer for uniformly thin potato slices.
  • Substitute Gruyère with cheddar, Swiss, or a blend if preferred.
  • Pre-boiling speeds up baking and ensures even doneness.
  • Add herbs like thyme or chives for extra flavor.
  • Finish under the broiler for 1–2 minutes for a deeper crust—watch closely!

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