Amargo Obrero is a dark brown bitter characterized by its herbal, almost licorice flavor. It was initially created in 1887 as a response to the sweet drinks of the upper classes, and since then it has been known as the aperitif of the Argentine people and a working-class drink.  Although it can be enjoyed on its own, Amargo is typically used in mixed drinks, and while the standard is to couple it with tonic, other suggestions include grapefruit juice, coke, or sparkling water. The drink is bottled at 19.9% ABV