Ingredients

• 1lb/450g blackberries
• 8oz/225g cooking apples, peeled, cored and chopped
• 3 tbsp lemon juice
• 1½lb/700g granulated sugar
• knob butter

Method

1. Put blackberries, apples and lemon juice into a heatproof bowl. Cover and cook on HIGH (100%) for 4-5 minutes until the fruit has softened, stirring occasionally.
2. Stir in sugar and cook for a further 2 minutes, stirring frequently, until sugar has dissolved. Cook for a further 12-15 minutes, stirring occasionally, until setting point is reached.
3. Stir in butter and cool slightly. Spoon into prepared jars. Seal and label. Store in the fridge for up to 3 months.

Notes