Kentucky's most popular wheated bourbon that isn't called "Pappy," Maker's Mark has long been famous for using winter wheat as the flavor grain (along with the majority of corn) instead of the ubiquitous rye. The only thing that ever kept Maker's Mark from capturing the hearts of serious bourbon aficionados everywhere was the low proof. In 2014, however, they released a tiny amount of cask-strength whiskey to Kentucky residents and people went bananas.