Licorice is a rich flavor that is often associated with dark, herbal notes and is reminiscent of anise, though the two can be quite different when tasted side by side. For porters, stouts and dark ales licorice can't be beat!  It not only adds a pleasing flavor, but sweetens and improves head retention as well. Use 1/2 to 1oz. per 5 gallons of beer.