Vanilla Buttercream Frosting

Stir milk and flour together in a saucepan over low heat; cook stirring constantly until thick about 5 minutes. Cool mixture in refrigerator until cold to the touch about 15 minutes.

Beat butter confectioners' sugar and vanilla extract together in a bowl until light and fluffy.

Stir cooled milk until smooth. Slowly beat into the butter mixture until frosting is of a spreadable consistency. For a thicker icing you may not need the entire milk mixture.