INGREDIENTS
1
box devil's food cake mix
3
eggs
1/2 cup
oil or melted butter, cooled
1 cup
milk or buttermilk
1/2 cup
sour cream
2 tsp
vanilla extract
1 cup
butter, softened
2 tsp
vanilla extract
1/2 cup
unsweetened cocoa powder
1 tbsp
milk
2 cups
powdered sugar