fee brothers aztec chocolate cocktail bitters 5oz fee brothers fee brothers have been one of only two mainstays in the cocktail bitters world for over 100 continuous years. opened in 1863, <br> fee brothers of rochester, new york, is in its fourth generation of manufacturing top quality bitters. <br><br> ancient aztecs would celebrate with a bitter beverage made of cacao beans, peppers and spices. <br> use a few dashes of fee's aztec chocolate bitters to expand the flavor of cocktails. <br><br><b> tasting notes: </b> a blend of sweet chocolate, with a hint of heat and spice. a must-have for the creative bartender.