For the blackberry sparkling wine jelly, boil the blackberries and strain. Bring the blackberry puree to the boil with the preserving sugar, boil for 5 minutes until bubbling, stir in the sparkling wine, boil once and fill into sterile jars.
Seal the jars tightly immediately.
Preparation Tip:
The blackberry champagne jelly goes well with desserts. Try it also once with cheese.