Scalloped Potatoes
["1 lb. potatoes", "2 Tbsp. butter", "2 Tbsp. flour", "1/2 tsp. salt", "1/8 tsp. pepper", "2 Tbsp. onion", "1 1/2 c. milk", "1 tsp. butter"]
["Prepare potatoes (slice thinly).", "Layer 1/2 potatoes in casserole.", "Place all onion and 1/2 sauce.", "Top with remaining potatoes and sauce.", "Dot with butter, cover and cook at 350\u00b0 for 30 minutes.", "Bake, uncovered, for an additional 35 minutes."]
["potatoes", "butter", "flour", "salt", "pepper", "onion", "milk", "butter"]