INGREDIENTS
1 box
cake mix
1 1/4 cups
buttermilk
1/3 cup
butter
3
eggs
1 tbsp
baking cocoa
2 tsp
violet food coloring
1 cup
butter
4 oz
cream cheese
1/4 tsp
kosher salt
4 cups
powdered sugar
1 tsp
vanilla extract
2 tbsp
heavy cream
1 serving
drop of violet food coloring