Ingredients

3 cups fresh blackberries

4 cups white balsamic vinegar

6 sprigs rosemary

1/4 cup lemon thyme

1/4 cup basil leaves

Preparation

place blackberries and herbs into a gallong glass jug (I use a sterilized pickle jar).

Heat white balsamic vinegar in a non-reactive pot until steaming but not boiling.

Pour over berries and herbs. Allow to cool then cover opening with plastic wrap then jar lid. Shake gently and store in a dark place.

Allow it to steep for a week shaking gently each day. Strain through a fine sieve and store in sterile bottles.