Ingredients
Scale
- 1 garlic clove
- 2 pounds baking potatoes peeled and very thinly sliced (use a mandolin if possible)
- 1 cup freshly grated Gruyere cheese
- 1 cup heavy cream
Instructions
- Preheat oven to 350 F.
- Rub a baking dish with the garlic. Layer half of the potatoes in the dish overlapping slightly. Sprinkle with half of the cheese and then half of the cream.
- Sprinkle with salt. Add another layer, using the rest of the ingredients. Bake uncovered, until the gratin is crisp and golden on top, about 1 hour.