Microwave Scalloped Potatoes
["3 Tbsp. butter", "2 Tbsp. flour", "1 tsp. salt", "1/4 tsp. pepper", "3 c. milk", "3 1/2 to 4 c. sliced potatoes", "2 Tbsp. chopped onions"]
["Melt butter in microwave.", "Blend in flour and seasonings. Microwave 8 to 10 minutes, stirring every 3 minutes.", "Layer 1/2 of potatoes, onions and sauce in a greased casserole.", "Repeat layers. Cover and microwave 17 to 19 minutes, stirring after 10 minutes. Remove from oven and let stand 5 minutes before serving."]
["butter", "flour", "salt", "pepper", "milk", "potatoes", "onions"]