INGREDIENTS
1
box White Cake Mix
4
egg whites
1/4 cup
oil
3/4 cup
buttermilk
1/4 cup
fresh lemon juice
3/4 cup
sour cream
zest of 3 lemons
3 tbsp
fresh lemon juice
1 tsp
lemon zest
1 cup
powdered sugar
1/2 cup
butter, softened
8 oz
cream cheese, softened
2 tsp
vanilla extract
1/2 cup
unsweetened cocoa powder
3 cups
powdered sugar