1 cup sugar
6 tablespoons corn starch
4 tablespoons cocoa
1/2 teaspoon salt
1 cup water
2 tablespoons oil
1/2 teaspoon vanilla
1. Mix sugar, cornstarch, salt, and cocoa in a medium sauce pan. Whisk in the water.
2. Heat over medium until it gets thick and starts to boil. Boil for 1-2 minutes. (Make sure you don't boil too long, or it will set like taffy.)
3. Remove from heat and stir in oil and vanilla. Cool and spread on cooled cake. Enjoy!