Potato Casserole - cooking recipe

Ingredients

4 boxes au gratin potatoes
1 (16 oz.) sour cream
1 lb. hamburger
4 Tbsp. minced onion
8 c. boiling water
1 c. milk
6 Tbsp. butter

Preparation

Heat oven to 350\u00b0.
Brown hamburger with 2 tablespoons minced onion.
Put the potatoes from the boxes in a large pan.
Add remaining minced onion, butter and cheese mixes from box of potatoes.
Add the 8 cups of boiling water, milk and sour cream. Stir until well mixed.
Bake for 50 minutes until golden brown on top.
This makes enough for a large group of people.