- 1/3 cup butter
 - 1/4 cup milk
 - 2 cups sifted confectioners' sugar
 - 1 teaspoon rum flavored extract
 - 1 tablespoon hot water
 
- Heat butter and milk over a low heat. When melted remove from heat.
 - Stir sugar and rum extract into the butter and milk mixture. Use hot water to thin the icing to your desired consistency.