Potatoes Au Gratin - cooking recipe

Ingredients

2 lb. hash brown potatoes, defrosted
1 large onion, chopped
1 can cream of chicken soup
2 c. grated Cheddar or cubed Velveeta cheese
1 stick margarine
1 pt. sour cream

Preparation

Bake at 375\u00b0 for 1 hour.
Serves 8 to 10 people.