Blackberries can be found in abundance in hedgerows throughout Ireland from late summer right up until early Autumn. There are plenty of things you can make with them, but an absolute classic is this simple jam.
- Place 1kg of sugar, 1kg of blackberries and juice and zest of one lemon in a large pot.
- Bring the mixture to the boil, stirring until all the sugar dissolves. Cook the jam for approximately 15 minutes or until it reaches 105˚C on a sugar thermometer.
- Remove from the heat and carefully transfer to sterilised jars, cover each with a disc of wax paper and seal tightly with a lid.
- Kept in a cool dark place the jam should keep like this for up to 12 months.