450 North Slushy XXL Cookie Bongster is a Smoothie Sour by style. Cookie Bongster XXL is a blueberry marshmallow chocolate chip cookie slushy conditioned on blueberry, marshmallow, vanilla cream, lemon zest, brown sugar, lactose, chocolate chips and cookie butter. This craft beer is 5.3% ABV. In this craft beer review, we will take a look at the color, smell, and taste.