Vieux-Boulogne is a French cheese made from raw cow's milk in the Pas-de-Calais region. The cheese was invented by Antoine Bernard and Philippe Olivier in 1982. Its body is soft and elastic, surrounded by a reddish-orange rind that's washed with beer during the production process.
The flavors are earthy, while the aroma is reminiscent of mushrooms and onions. Vieux-Boulogne was judged the smelliest cheese in the world in a research conducted by Cranfield University. This stinker beat 14 other cheeses, including Brie de Meaux, Camembert de Normandie, Munster, and Pont l'Évêque.