Guinness Extra Stout beer. Buttery gourmet brittle. You'll love the deep, rich Guinness Stout flavor of this buttery beer peanut brittle. This is our most buttery brittle ever, and the most popular flavor to date. The alcohol from the beer evaporates during the cooking process, leaving the rich grain flavor from the beer to meld with the delicious buttery brittle taste. Available in 1/2 pound bags to enjoy at home, or a one pound gift tin for friends and business clients. Buy a couple extra...just in case.