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.