Butterscotch Icing
["1/2 c. brown sugar", "6 Tbsp. butter", "1/3 c. milk", "1 1/2 c. powdered sugar"]
["Melt brown sugar and butter.", "Add milk.", "Boil 2 minutes; chill. In mixer add 1 1/2 cups powdered sugar more or less desired; spread."]
["brown sugar", "butter", "milk", "powdered sugar"]