蓝莓冰箱蛋糕

Blueberry Refrigerator Cake is an moderately easy dinner. Made with 3 layers favorite yellow cake mix, 1 (8 or 9 oz.) carton frozen whipped topping, thawed, 1 (8 oz.) carton commercial sour cream or 1 (8 oz.) pkg.奶油干酪，1 杯糖粉和1茶匙。香草味，这个食谱提供了正宗、令人满意的味道。非常适合招待客人或度过舒适的夜晚。