Scalloped Potatoes - cooking recipe

Ingredients

1/4 cup onion, chopped
1/4 cup butter
1/4 cup flour
1 1/2 teaspoons salt
1/8 teaspoon pepper
2 1/2 cups milk
5 large potatoes, peeled and thinly sliced (about 5 cups)

Preparation

To make sauce, cook onion in butter till tender but not brown. Stir in flour, salt and pepper. Add milk. Cook and stir till thickened and bubbly. Cook and stir 1 to 2 minutes more. Remove from heat.
Place half of the sliced potatoes in a greased 2 quart casserole. Cover with half of the sauce. Repeat layers.
Bake, covered, in a 350* oven 45 minutes, stirring once. Uncover, bake 30 to 45 minutes more or until potatoes are done.