Unicum (pronounced [ˈunikum]) is a hungarian herbal liqueur or bitters, drunk as a digestif and apéritif. the liqueur was created in 1790 and 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 city and chicago, and unicum in hungary was produced using a different formula. before moving to the united states, jános zwack had entrusted a family friend in milan with the production of unicum based on the original recipe. after the fall of communism, péter zwack returned to hungary and resumed production of the original unicum. the texture of the drink is "thi...

Source: Wikipedia