Step 1

Blend berries and add to wine. Bring to a boil and then strain wine to remove blackberry seeds and pulp.

Step 2

In a large sauce pan add the sugar to the blackberry infused wine and bring to a boil, stirring frequently. Let it boil one minute. Add certo, stirring until dissolved. Remove from heat. Skim foam off top, if necessary.

Step 3

Ladle hot jelly into hot, sterilized jars, leaving 1/2 inch head space. Tighten 2 piece lids. Process for 5 minutes in boiling water bath.