Around the time of the Louisiana purchase, beer was shipped in barrels. if one had been lucky enough to receive a used Bourbon barrel of Imperial Stout, this is what his/her happy taste buds would have encountered: roasty, rich, malty imperial stout with a strong dose of caramel, oak, and Bourbon character. This is the perfect beer to pair with hearty, cold weather dishes, smoked meats, and virtually any dessert.