Yellow Belly Sundae is a collaborative imperial pastry stout brewed by Buxton Brewery (England) and Omnipollo (Sweden), conceived as a decadent dessert experience in a glass. The beer is aged in bourbon barrels, which adds depth and a gentle warmth that appears in the finish.

Its base is a stout enriched with cacao nibs, vanilla, lactose, and ingredients designed to evoke the flavor of peanut-butter biscuits. It pours completely black, with a thick, oily body and minimal beige head.

The aroma is intense, showing notes of chocolate, coffee, vanilla, biscuit and peanut butter. The flavor follows the aroma - chocolate and peanut butter dominate, while vanilla and bourbon add layers and warmth.

The texture is very thick and almost syrupy, with low carbonation that highlights the full body. The alcohol content (around 12%) is noticeable but well integrated, making this a slow-sipping beer.

The finish is long, sweet, and warming, leaving a lingering impression of chocolate and nuts. Yellow Belly Sundae is a limited and often numbered release, making it a collector’s beer.

It is intended for lovers of dessert stouts seeking an intense, complex experience that leans more toward a tasting or digestif beverage than a traditional beer.