2 cups frozen unsweetened blackberries, thawed (save the juice from thawing)
2 cups frozen unsweetened raspberries, thawed (save the juice from thawing)
1 16-ounce can unsweetened grape juice juice concentrate
1/3 cup cornstarch dissolved in 1/3 cup water
Instructions
Place grape juice and juice from berries in a saucepan and bring to a boil.
Remove from heat and stir in cornstarch mixture. Add in a slow stream and stir constantly. Bring to boil again while stirring. Remove from heat (should be consistency of pudding).
Refrigerate for about 1 hour. Stir in berries. Pour into sterilized jars.
