Instructions: Wash blueberries. Combine blueberries, vinegar, lemon rind and granulated sugar in a large non-reactive pot. Tie cloves and cinnamon in a cheesecloth bag and add to the blueberry mixture. Bring to a boil, reduce heat and simmer 25 minutes uncovered. Remove spice bag. Skim and discard any foam.

Ladle berries into four clean and sterilized hot pint jars. Fill jars to 1/8" of the top. Wipe jar rim and put lids on. Process in boiling water bath for 15 minutes. Count time from when the water returns to a boil.

Remove jars and seal according to lid manufacturers instructions. Store for at least 3 weeks before using.

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