INGREDIENTS
1
box yellow cake mix
2
bananas (mashed)
3
eggs
1/3 cup
oil
2/3 cup
sour cream or plain yogurt
2 tsp
vanilla extract
2 cups
fresh or frozen blueberries
1/2 cup
butter (room temperature)
8 oz
cream cheese
2 tsp
(vanilla extract)
2 tbsp
milk
4 cups
powdered sugar