Onion Potato Gratin

• 4 large potatoes, sliced thin
• 1 onion, sliced thin
• salt & pepper
• 1 cup half-and-half
• nonfat cooking spray
• 2 cups swiss cheese, grated
• 1 tablespoon butter

1. Preheat oven to 425.
2. Spray an oval baker with cooking spray.
3. Add 1 layer of potatoes, top with 1 layer onions, top with cheese; salt and pepper repeat layers until you end up with final layer of potatoes, top with cheese.
4. Pour in half and half to equal height of layers.
5. Dot with butter.
6. Bake covered 45 minutes, then uncover and bake 15 minutes more.

potatoes, onion, salt, nonfat cooking spray, swiss cheese, butter

Taken from www.food.com/recipe/onion-potato-gratin-47923 (may not work)