- STEP 1
Prepare your jam jars, they must be sterlized as to prevent mould developing on the jam, the easiest way to do this is washing the jars with soapy warm water then placing them in a microwave for 45-60 seconds or until dry, you then can sterlize the lids by sumberging them in boiling water for 5 minutes.
- STEP 2
Now add chopped cooking apples, blackberries and the lemon juice into a large pan over a low-medium heat. Let this mixture become juicy, simmering for 15 minutes. stiring occasionally.
- STEP 3
After 15 mintues stir in the sugar, when the sugar is dissolved turn up the heat to medium-high and boil for 10-15 minutes until set. To ensure jam is set, you can put a little round blob of jam onto two cold plates and then push the jam from the side, if it wrinkles the jam is set.
- STEP 4
Leave the jam in the pan for 10 minutes, then spoon into your jam jars, and place the lids on immediately.