Pickled Blueberries

1 1/2 teaspoons whole mixed pickling spices
1 3/4 cups sugar
1 1/2 cups cider vinegar
3/4 cup water
1 cinnamon stick
2 pints blueberries, washed and picked over

Tie pickling spice ia a double-thickness cheesecloth bag. Stir together spice bag, sugar, vinegar, water and cinnamon stick in a large nonaluminum saucepan. Simmer, uncovered, 20 minutes.
Add blueberries; simmer 3 minutes or just until berries become softened.
Pour mixture into a large bowl. Cover and refrigerate overnight.
To serve, remove spice bag and cinnamon stick and use slotted spoon to serve.
If not using immediately, spoon into sterilized canning jars. Refrigerate.