Au Gratin Potatoes - cooking recipe

Ingredients

1 (1 lb.) can sliced potatoes (liquid reserved)
1 c. milk
4 Tbsp. butter
3/4 tsp. salt
1/4 tsp. pepper
2 1/4 c. instant mashed potato flakes
1/2 pt. dairy sour cream
8 oz. grated sharp cheese
4 Tbsp. dry minced onion or 1/2 chopped fresh onion
1/2 c. butter
1 c. grated American cheese

Preparation

Drain potatoes.
Reserve liquid and add enough water to make 2 cups.
Pour into 2-quart saucepan.
Add milk, 4 tablespoons butter, salt and pepper.
Bring to a boil.
Remove from heat at once and immediately stir in mashed potato flakes.
Stir in sour cream, sharp cheese and onion.