Filibuster uses various mash bill elements, including corn, barley and rye and a wide selection of barrels to achieve a complex and flavorful whiskey. Their proprietary aging method includes time in New American White oak, red and white wine-seasoned French oak and Fino and Pedro Ximenez sherry casks. The Boondoggler is neither a bourbon or a rye in the traditional sense, but combines elements of both for a one of a kind taste experience.