Combine all ingredients in a medium saucepan; bring to a boil, stirring constantly. Continue to cook over medium heat, stirring constantly, until mixture is thickened. Cool icing slightly.
Note: New to cake-baking? Begin your career with Chocolate "Failure" Cake. The cake is programmed to split open, the icing guaranteed to drip. It will be a triumphant beginning.
Oxmoor House Homestyle Recipes