1/3 cup butter
Melt butter in a small saucepan over a low heat. Add vanilla and sugar. Stir in hot water, one tablespoon at a time until smooth. 1 tablespoon of water makes thick icing, 2 tablespoons makes medium consistency, and 3 makes a great thin icing for dribbling over any number of desserts. Makes 1½ cups. You can add a drop of food coloring if you like.