Au Gratin Potatoes

Ingredients

• 6 medium russet potatoes, peeled and thinly sliced
• 1 small onion, finely chopped
• 2 cups heavy cream
• 1 cup grated sharp cheddar cheese
• 1/2 cup grated Parmesan cheese
• 3 tablespoons unsalted butter
• 2 cloves garlic, minced
• 1 teaspoon salt
• 1/2 teaspoon black pepper
• 1/2 teaspoon dried thyme

Instructions

1. Preheat the oven to 400°F (200°C).
2. In a saucepan over medium heat, melt butter and sauté onions and garlic until translucent.
3. Add heavy cream, salt, pepper, and thyme, bringing the mixture just to a simmer. Remove from heat.
4. Layer half of the potato slices in the bottom of a greased baking dish. Pour half of the cream mixture over the potatoes, and sprinkle with half of both cheeses.
5. Repeat with the remaining potatoes, cream mixture, and cheeses, finishing with a layer of cheese on top.
6. Cover with aluminum foil and bake for 1 hour. Remove foil and bake for an additional 20-30 minutes or until the top is golden brown and crispy.
7. Let rest for 10 minutes before serving to allow the sauce to thicken.