Bon Appétit: Double Cheesy Au Gratin Potatoes

Ingredients:
4 large baking potatoes, peeled and sliced thin
1 quart heavy cream
1/2 cup grated Parmesan cheese
salt and pepper to taste
1 cup shredded sharp Cheddar cheese
Directions:
Preheat oven to 350 degrees F (175 degrees C).
Grease a 2 quart baking dish.
Layer potato slices in prepared baking dish.
Pour cream over potatoes; sprinkle with Parmesan cheese.
Season potatoes with salt and pepper.
Bake in preheated oven until potatoes are soft, about 1 hour.
Remove from oven; gently stir potatoes.
Sprinkle with the Cheddar cheese; cover and let rest until cheese is melted, about 5 minutes.