Buttercream Icing
["3 c. powdered sugar", "1/3 c. butter, softened", "1 1/2 tsp. vanilla", "about 2 Tbsp. milk"]
["Mix powdered sugar and butter.", "Stir in vanilla and milk.", "Beat until smooth and of spreading consistency.", "Frosts a 13 x 9-inch cake or fills and frosts two 8 x 9-inch cake layers."]
["powdered sugar", "butter", "vanilla", "milk"]