A Gravastar, meaning "gravitational vacuum star", is an object hypothesized as an alternative to the black hole theory, as deep and dark as this original oatmeal stout. A smooth base of Maris Otter Malt, followed by roast malts, wheat and oats, complements the layers of peanut butter and chocolate. Brewed especially for BeerAdvocate's Extreme Beer Box: BIG STOUTS, this beer is a real treat that will pull you in.