This full-flavored stout is strong, black and robust. It has flavors of whiskey, oak, vanilla, and a hint of cherry that are derived from wood maturation use in whiskey production. Oak, Vanilla, Whisky. When you blaze a trail up a mountain, your goal is to reach the peak. We did the same with the Peak Series, our brewer's selections that combine intensity, adventurous flavors and special brewing techniques to reach the pinnacle of the brewers' art.