Poor Man's Frosting Be The First To Review By Anonymous recipe Comments | 0 Favorites | 12 Print A fast recipe to frost a cake with. Poor Man’s Frosting Ingredients 1 cup milk5 tablespoons all-purpose flour3/4 cup butter, softened1 cup white sugar1 teaspoon vanilla extract1/8 teaspoon salt Instructions 1 Whisk milk into flour in small saucepan until smooth. Heat and stir until it boils and thickens. Cool thoroughly. 2 With an electric mixer beat the butter, sugar and salt until light and fluffy. Beat in the cooled flour paste and mix until smooth. Stir in the vanilla. Use to frost any cooled cake.