Foamy Sauce Recipe 3 ingredients

• ½ cup butter
• 1 cup confectioners sugar
• 1 egg
• 2 tablespoons hot water
• 1 teaspoon vanilla

To prepare this Foamy Sauce Recipe 3, first cream the butter and gradually add the sugar, the egg, well beaten, and the hot water. Heat over hot water, beating constantly until it thickens. Add the vanilla and serve.