Another one from Delia Smith. Perfect for a cocktail party. I would think any blue cheese could be substituted for the Stilton, but it's better to have the real thing. I must add my two cents and say that true English Stilton is much creamier and more flavorful than what you get in the states, although stateside Stilton will get the job done. These can be served hot or warm, or they can be made in advance and briefly reheated before serving. They can also be frozen. Cooking time does not include chilling time.