INGREDIENTS
1
Box Devil's Food or Chocolate Cake Mix
3
eggs
1/2 cup
oil
1 cup
buttermilk or milk
1/2 cup
sour cream
2 tsp
vanilla extract
1 cup
sugar
6 tbsp
butter, room temperature
1/3 cup
heavy cream
1 cup
butter, softened
3/4 cup
unsweetened cocoa powder
2 tbsp
milk
2 tsp
vanilla extract
3 cups
powdered sugar