This recipe creates a spicy, non-carbonated ginger beer reminiscent of what Audrey Saunders made at her New York bar, the Pegu Club. Perfect for cocktails like the Gin Gin Mule, it's also delicious simply mixed with sparkling water and some simple syrup as a refreshing soda. The version here is scaled to be a home size batch, most of us don't need to do it by the gallon.