Imperial Stout Aged In Bourbon Barrels with Chocolate, Vanilla, & Cinnamon. The base of this beer is a blend of Parabola and Velvet Merkin, two iconic imperial stouts aged in Heaven Hill Bourbon Barrels. Inspired by memories of childhood campfire treats, we then recirculated this blend through copious amounts of cocoa nibs, vanilla beans, and cinnamon sticks. The result is both balanced and stunning - we know you'll want s'more.