The beer is brewed then stored for six weeks in used bourbon barrels from Kentucky's various distilleries- which gives the beer a higher ABV as well as distinct bourbon flavor. I tried the Bourbon Barrel Ale, Old Fashioned Barrel Ale, Bourbon Barrel Coffee Stout, and Honey Barrel Brown Ale. The bar we were at featured several "barrel aged bourbon ales". I just tried the ones from the company Kentucky Ale.
https://www.kentuckyale.com/products...bon-barrel-ale