Plum & apple jam

  • Preparation time: 30 minutes + cooling
  • Cooking time: 30 minutes
  • Total time: 1 hour + cooling

Makes: 4 x 450g jars

Ingredients

450g Bramley apples, peeled
and cored
900g Waitrose British Plums, halved and stoned, then quartered
1.1kg granulated sugar 

Method

1. Preheat the oven to 150°C, gas mark 2. Cut the apples into chunks and place them, along with the plums and 150ml water, into a wide, stainless-steel pan. Cover and simmer for 10–15 minutes, until the plums are soft and the apples are cooked to a pulp.

2. Meanwhile, heat the sugar in an ovenproof dish in the oven for 5–10 minutes while the jars and lids are sterilising. When the fruit is cooked, add the warm sugar, stirring until dissolved. Boil uncovered until set, about 10–15 minutes. Pour immediately into warm jars and seal while hot. When cold, store in a cool, dark place for up to 6 weeks.