From Scratch Au' Gratin Taters (Au Gratin Potatoes) - cooking recipe

Ingredients

3 (8 ounce) cans sliced white potatoes (drained)
1/2 cup sour cream
2 cups milk (or heavy cream)
1 (8 ounce) can cream of mushroom soup
2 cups cheddar cheese
1/4 cup real butter
salt and pepper (to taste)
1 small white onion (optional)

Preparation

Preheat oven to 375.
Combine all ingredients into a large boiler (keep out 1 cup of cheese). Bring all ingredients to a low boil on stovestop, stirring often because the potatoes with burn to bottom if they settle.
Once mixture has come to a boil, pour into a 13 x 9 baking dish. Cover top with remaining cheese and cover with foil.
Bake for 40 minutes and then remove foil and finish baking about 10/15 minutes. Enjoy!