Scalloped Potatoes
["6 medium potatoes", "3 Tbsp. butter or margarine", "2 Tbsp. enriched flour", "3 c. milk", "1 tsp. salt", "1/4 tsp. pepper", "2 Tbsp. chopped onion"]
["Pare potatoes; slice thin.", "Put half the potatoes in a greased 2-quart casserole.", "Cover with half the sauce, seasonings and onion.", "Add remaining potatoes, seasonings and onion, then remaining sauce.", "Cover and bake in moderate oven (350\u00b0) for about 1 hour.", "Uncover and continue baking until top is browned.", "Grated cheese may be added to white sauce.", "Makes 4 to 6 servings."]
["potatoes", "butter", "flour", "milk", "salt", "pepper", "onion"]