Boston Harbor Distillery collaborated with the Boston Beer Company to create "Spirit of Boston," a limited edition three-pack set of whiskeys distilled from Samuel Adams beer. At this whiskey's base is Samuel Adams Merry Maker Gingerbread Stout, made with grain, hops, and spices like cinnamon, clove, nutmeg, and ginger. Copper pot distilled and aged in bourbon American oak, it carries no age statement and is bottled at 42% ABV.