1bottle of Proseccoor sparkling grape juice for a non-alcoholic version
Frozen blackberries to serveoptional
Puree the blackberries (in a small food processor or blender) and divide this into 8 -10 portions and freeze them in an ice cube tray, overnight. (optional - strain the puree to remove the seeds if you like that better).
In 4 glasses (not flutes), place 2 blackberry ice cubes, 3 tbsp of lavender syrup, about 2 tsp of lemon juice and a few frozen blackberries (optional).
Top each glass with prosecco. Serve with a stirrer.
The lavender syrup and blackberry ice cubes should be made the day before you serve the drinks.