The Bardstown Bourbon Company Fusion Series #4 is a limited-edition, small-batch bourbon whiskey. It is made from a blend of two different bourbons, one aged for 8 years and the other aged for 12 years. The whiskey is then finished in a variety of barrels, including port, sherry, and Madeira. The result is a complex and flavorful whiskey with notes of dark fruit, spice, and oak. The bottle is 750 ml and the suggested retail price is around $100.