BEAT milk, whipped topping mix and pudding mixes in deep narrow-bottom bowl with electric mixer on low speed until blended.
BEAT on high 4 to 6 minutes or until mixture forms soft peaks. Makes about 3 cups or enough to frost 2 (8-or 9-inch) layers or 13x9-inch cake. Store frosted cake in refrigerator. For high altitude areas, reduce beating time to 2 to 4 minutes.