Coca-Cola Frosting:

1/2 c. butter
1/2 c. Coca-Cola
3 tbsp. cocoa
1 (16 oz.) pkg. powdered sugar
1 tbsp. vanilla extract

Bring first 3 ingredients to a boil in a large saucepan over medium heat, stirring until butter melts. Remove from heat; whisk in sugar and vanilla. Pour over warm cake.