This Beer Contains Lactose Milk Sugar. My Milkshake brings all the….whoah! Hold the train!!! New England IPA fused with Strawberry and Guava and a touch of vanilla to tie it all together. Call it weird, call it the best thing since you were a little kid at the ice cream shop ordering a frappe. Big Boss Milkshake IPA features a creamy finish as a result of lactose milk sugar leaving a rich and sweet finish complemented by fruit purees and the balancing foundation of New England IPA.