Stilton is an unpressed, Protected Designation of Origin (PDO) blue cheese from England. It is produced only in the three counties of Derbyshire, Leicestershire and Nottinghamshire with local pasteurized cows milk. The curds are and formed into a cylindrical shape and rotated so that they naturally drain. After approximately six weeks, the cheeses are injected with Penicillium Roqueforti and aged for an additional 3-4 weeks before it is inspected and approved for sale. The cheese has a crumbly texture with flavor components that are sharp, salty and slightly tangy. Stilton is a very popular and versatile cheese that can be used either as an ingredient or eaten alone.