1 pound fresh or frozen blueberries (about 1 quart)
3-1/2 cups sugar
1 tablespoon lemon juice
1/4 teaspoon ground cinnamon
1/8 teaspoon ground cloves
1 (3-ounce) pouch liquid fruit pectin
Crush blueberries; measure 2-1/2 cups and place in a large kettle. Add the sugar, lemon juice, cinnamon and cloves; bring to a full rolling boil. Boil for 1 minute, stirring constantly. Stir in pectin; return to a full rolling boil. Boil for 1 minute, stirring constantly. Remove from heat. Skim off foam. Pour hot mixture into hot jars, leaving 1/4-in. headspace. Adjust caps. Process 15 minutes in a boiling-water bath.