Ingredients
To create this comforting dish, you’ll need the following ingredients:
- 2 pounds of Russet potatoes, peeled and thinly sliced
- 1 cup heavy cream
- 1 cup whole milk
- 1 cup grated Gruyère cheese
- 1/2 cup grated Parmesan cheese
- 3 cloves garlic, minced
- 1 tablespoon fresh thyme leaves
- 1 tablespoon fresh rosemary, chopped
- Salt and freshly ground black pepper to taste
- 2 tablespoons unsalted butter
If Gruyère is not available, feel free to substitute it with sharp cheddar or fontina for a slightly different flavor profile.
Instructions
Follow these steps to bring this dish to life:
- Preheat your oven to 375°F (190°C). Grease a 9×13-inch baking dish with butter.
- In a saucepan over low heat, combine the heavy cream, milk, minced garlic, thyme, and rosemary. Simmer gently for about 5 minutes to infuse the flavors.
- Layer half of the sliced potatoes in the prepared baking dish, slightly overlapping them.
- Season the potato layer with salt and pepper, then pour half of the cream mixture over the top.
- Sprinkle half of the Gruyère and Parmesan cheeses over the potatoes.
- Repeat the layers with the remaining potatoes, seasoning, cream mixture, and cheeses.
- Dot the top with small pieces of butter for added richness.
- Cover the dish with foil and bake in the preheated oven for 40 minutes.
- Remove the foil and continue baking for an additional 20 minutes, or until the top is golden and bubbly.
- Let the gratin rest for 10 minutes before serving to allow the flavors to meld together beautifully.
- Prep Time: 15 minutes
- Cook Time: 30 minutes
- Category: Main Dish
- Method: Cooking
- Cuisine: International