Bacon with Mustard Glaze

• 1 (4 lb) (2 kg) middle gammon joint
• 10 peppercorns

Soak the gammon overnight in cold water, then rinse under running water the next day. Weigh the joint and calculate the cooking time; 20 minutes to the lb (450 g) plus 20 minutes over.

Put the gammon into a large saucepan with