6 large potatoes
2 cups shredded cheddar cheese
1 stick butter
1 medium onion (diced)
1 cup sour cream
salt and black pepper to taste

Preheat oven to 375°F. Boil potatoes whole. Cut into slices 1/4 inch thick. Set aside. Melt cheese and butter in sauce pan on top of stove. Add onion, sour cream, salt, and pepper to cheese mixture. Mix in Potatoes. Place in a large baking dish and cook for 45 minutes.