Southern Comfort is a peach flavored bourbon liqueur. It is a traditional american spirit made from an infusion of peach and other flavorings (such as citrus and orange) into a bourbon base. It is available as both 100 proof (50 percent alcohol) and 76 proof (38 percent alcohol). Although nowadays produced in St. Louis, Missouri, the history and secret formula of Southern Comfort stretches back to 1874 where a M.W. Heron created it in his bar in New Orleans.