Rum Barrel Carrot Cake Imperial Amber Ale is made with hundreds of pounds of freshly grated carrots and aged in Rum Barrels Spice notes of cinnamon, all spice, cardamon, clove and vanilla compliment the fresh carrot flavor. Five specialty malts, fresh bourbon flavor, American grown hops and our house American Ale Yeast meld with the carrot cake flavor we all know and love.