Fudge Frosting

Directions

1. 1
   Mix cocoa, cornstarch, sugar and salt together in a bowl.
2. 2
   Heat coffee in a medium saucepan.
3. 3
   Add butter to the coffee to melt. Stir until well blended.
4. 4
   Add cocoa mixture and simmer over medium-low heat, stirring constantly with a whisk, until mixture has the consistency of pudding (about 7 minutes).
5. 5
   Remove from heat and stir in the vanilla.
6. 6
   Allow frosting to cool for five minutes, stirring occasionally.
7. 7
   Use the frosting when it is still tepid; do not allow it to become too stiff.