A rich and creamy potato gratin made with roasted garlic, layered potatoes, and melted cheese.
2 pounds potatoes
1 head garlic
1 tablespoon olive oil
2 cups heavy cream
1 cup Gruyère
1/2 cup Parmesan
2 tablespoons butter
1 teaspoon salt
1/2 teaspoon pepper
Slice potatoes evenly for consistent cooking. Let dish rest before serving.