1/4 c. chopped onion
1/4 c. butter
1/4 c. flour
2 1/2 c. milk
5 lg. potatoes

To make sauce, cook onion in butter until tender, but not brown. Stir in flour, 1 1/2 teaspoons salt and 1/8 teaspoon pepper. Add milk; cook and stir until thickened and bubbly. Cook and stir 1-2 minutes more. Remove from heat.

Place half of potatoes in greased casserole. Cover with half of sauce; repeat layers. Bake covered in 350 degree oven for 45 minutes, stirring once. Uncover; bake about 30 minutes more until potatoes are done.

CHEESY SCALLOPED POTATOES: Stir 3/4 cup cheese into sauce.