Potatoes Au Gratin - cooking recipe

Ingredients

8 medium potatoes, sliced and also peeled
1 onion (large), cut in thin slices
Cheddar cheese
4 Tbsp. butter or margarine
1 tsp. salt
4 Tbsp. flour
2 c. milk
8 oz. or more Cheddar cheese, grated (mild)

Preparation

In saucepan, put butter or margarine, salt, flour and milk. Be sure to keep this smooth; I use a wire whisk.
Add cheese. Bake at 350\u00b0 for about 45 minutes.
Sprinkle paprika on top. Serves 8 to 10.