Potato Casserole - cooking recipe

Ingredients

8 large potatoes, baked and skins removed
1/2 cup butter or 1/2 cup margarine
salt and pepper
1 onion, chopped
2 -4 tablespoons milk
16 ounces sour cream
8 ounces cheddar cheese, grated (divided)
bacon, cooked and crumbled (optional)

Preparation

Mash potatoes with butter or margarine, salt, pepper, onion and milk.
Add sour cream.
Mix in 1/2 of the cheese.
Pour into a large casserole dish.
Sprinkle remaining cheese on top.
Bake 15 minutes at 350 degrees Fahrenheit.
Top with crumbled bacon.
If prepared ahead of time and chilled, bake 45 minutes at 350 degrees Fahrenheit or until bubbly.