ABV 6.2% Rhythm and Blues. Batman and Robin. Peanut Butter and Chocolate. These classic duos never go out of style. Enter Peanut Butter Milk Stout. We took the pure milk chocolate bliss of our classic Milk Stout and added peanut buttery goodness. Itâs like an adult peanut butter cup you can drink. Itâs rich and decadent on the palate and lusciously lingers into a nutty, dry finish. A perfect pair youâll want to share.