Goose Island Big John imperial stout adds cocoa nibs to bring even bigger chocolate flavors.  I wasn’t overly impressed with this brew and for $2 more a bomber, I’d take Bourbon County Stout instead any day. Big John is 11.5% but like all the Goose Island imperial stouts, you’d never know.  I’m not sure cellar time would really do much to benefit this beer.  The chocolate flavor wasn’t anywhere close to as big as the description would make it out to be and I don’t imagine it’ll become any more apparent with time.