Optional: Juniper (we sourced from the legends at Oasis Bakery)
METHOD:
Mix 1 jar of blackberry jam (standard 370-400g jar) and 4 jars of water on the stove with 50g of rosemary and an optional handful of juniper berries. Bring to a boil
Simmer with the lid on for 15 minutes, allow to cool, and then strain the syrup.
Mix 3 parts syrup to 1 part gin (3-month refrigerated life)
Serve with a sprig of rosemary and a teaspoon of butter on the side.