• 3 lb. plums
• 2 medium onions
• 2 medium apples

Peel and chop the onions; peel, core and chop the apples; stone the plums and cut the plums in quarters. Remove the trivet from the pressure cooker. Put into the cooker the plums, onions and apples, the spices and salt and half the vinegar. Bring to the boil slowly in the open cooker, then cover, bring to 15 lb.<