A complex, one-of-a-kind 10-year old straight bourbon whiskey finished for 15 months in Founders’ KBS Stout barrels, this Bardstown Collaboration Series KBS Aged Stout Barrel Finished Straight Bourbon Whiskey is a hallmark of the Kentucky distiller’s peerless approach to groundbreaking whiskey-making. Bottled at 110 proof, composed of an 84% corn, 8% rye and 8% malted barley mash bill, this exclusive limited edition Tennessee bourbon whiskey is a superb warming sipper with a complex cocoa-forward profile.