Dubbel is a rich and well-balanced Trappist beer that originated in Belgium and whose modern version is often associated with Henrik Verlinden who created the prototype at Westmalle brewery in 1926. This version was named Dubbel Bruin, and soon after its invention, the style was copied in many Belgian breweries.
Unlike other brown beers, typical Belgian dubbel will get its flavor from candi sugar—a thick and dark caramelized syrup that is added to the wort. These beers typically range from amber to copper, and they will usually have complex aromas and flavors reminiscent of toffee, raisins, malt, and dark fruit.
Their finish is typically dry, while some may display subtle sweetness. Most are bottle conditioned—fermented in the bottle—and are usually not crystal clear. Although they are typically quite potent, with at least 6.5% alcohol by volume, the alcohol is not evident or discernible on the palate.