Au Gratin Potatoes - cooking recipe

Ingredients

2 lb. potatoes
1 medium onion, chopped
1/4 c. butter
1 Tbsp. all-purpose flour
1 tsp. salt
1/4 tsp. pepper
2 c. milk
8 oz. sharp Cheddar cheese, shredded
1/4 c. dry bread crumbs (fine)

Preparation

Peel potatoes and slice thinly to measure about 4 cups.
Cook and stir in onions in margarine in 2-quart saucepan until tender. Stir in flour, salt and pepper.
Cook over low heat, stirring constantly, until mixture is bubbly.
Remove from heat.
Stir in milk and 1 1/2 cups of cheese (about 6 ounces).
Heat to a boil, stirring constantly.
Boil and stir 1 minute.