Chocolate Fudge Frosting - cooking recipe

Ingredients

1 chocolate cake mix, baked in a 9 x 13-inch pan
1 stick butter
4 Tbsp. cocoa
6 Tbsp. milk
1 box powdered sugar
1 tsp. vanilla

Preparation

Bring to a boil butter, cocoa and milk, stirring constantly until thick.
Remove from heat.
Add other ingredients and mix until blended.
Spread immediately on top of hot cake.
I start making my frosting about 3 or 4 minutes before the cake is done baking.
This fudge frosting tastes like fudge candy on top of a cake.