Unicum is a Hungarian herbal liqueur or bitters, drunk as a digestif and apéritif. The liqueur is today produced by Zwack according to a secret formula of more than forty herbs; the drink is aged in oak casks. During Communism in Hungary, the Zwack family lived in exile in New York and Chicago, and Unicum in Hungary was produced using a different... Found on http://en.wikipedia.org/wiki/Unicum