Glossy Chocolate Frosting
Mix 1/2 cup sugar and 1 1/2 tablespoons cornstarch; add one 1ounce square unsweetened chocolate, dash salt, and 1/2 cup boiling water.
Cook and stir till blended and mixture thickens.
Remove from heat; add 1 1/2 tablespoons butter and 1/2 teaspoon vanilla.
Spread on cake while hot.
Frosts on cake or cupcake.