Sweet-toothed 106th anniversary dessert treat begins fabulously, overloading black chocolate and dark cocoa upon oily hop-charred resin. But as the dark-roasted mocha malt frontage declines, its richness and body fades. So instead of tasting like candy-sugared M & M’s or a Milky Way, the chocolate-caked cocoa bean, chocolate mint, milked coffee; Kahlua and syrupy molasses illusions lose luster, leaving some phenolic astringency in its wake.