Fireball Liqueur Cinnamon & Whiskey - Initially it remained a secret formula shared among the most experienced bartenders but then spread throughout North America. In Colorado apres ski it is mixed with hot apple juice or hot chocolate, in college it is the shot that lights up the evening! In the mid-80s, during the harshest winter ever, a Canadian bartender created, almost by chance, the mixture of whiskey and cinnamon liqueur that would warm him during the long freezing nights.