Penne with Leeks and Bacon recipe | Delia Smith

Ingredients

• 12 oz (350g) penne or macaroni
• 3 small leeks, cleaned and chopped
• 6 oz (175 g) streaky bacon, de-rinded and chopped
• olive oil
• 2 oz (50 g) butter
• 2 oz (50 g) plain flour
• 1½ pints (850 ml) milk
• 6 oz (175 g) Cheddar cheese, grated
• 3 fl oz (75 ml) double cream
• freshly grated nutmeg
• salt and freshly milled black pepper
• 2 level tablespoons freshly grated Parmesan (Parmigiano Reggiano)
• 1 level tablespoon breadcrumbs
• 2 pinches cayenne pepper