Caramel Icing
["1 stick butter, melted", "1 C. brown sugar", "1/4 C. milk", "1/2 tsp. vanilla", "2 to 2 1/2 C. confectioners sugar"]
["Melt butter. Add brown sugar and boil 2 minutes, stirring constantly. Add milk and bring to boil again. Add vanilla and confectioners sugar. Beat until smooth."]
["butter", "brown sugar", "milk", "vanilla", "confectioners sugar"]