Black Chocolate Cake Frosting

Description
Contributed by World Recipes Y-Group

Ingredients

 * 1 egg white
 * 1 cup sugar
 * ¼ cup brown sugar
 * ¼ teaspoon cream of tartar
 * ⅓ cup water
 * salt -- pinch
 * 1 teaspoon vanilla

Directions

 * 1) Combine ingredients in double boiler on low heat.
 * 2) Beat with electric mixer for 4 minutes.
 * 3) Spread on cool cake.
 * 4) Enjoy.