Potato Casserole - cooking recipe

Ingredients

1 large bag frozen hash brown potatoes, thawed
1 small onion, chopped
1 stick melted margarine
1 can cream of chicken soup
1 (8 oz.) carton sour cream
1 1/4 c. crushed cornflakes
1 stick melted margarine

Preparation

In a 13 x 9-inch casserole dish, layer in order given.
Bake at 350\u00b0 for 30 minutes.