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Blueberry muffins, spread with blueberry jam.

Wild Blueberry Preserves

Homemade blueberry preserves, made with wild blueberries, and spiced with vanilla, cardamom and cloves.
Prep Time 5 mins
Cook Time 15 mins
Total Time 20 mins
Course Breakfast, Side Dish
Cuisine American, British
Servings 4 cups


  • Hot Sterilized Jam Jars with Lids/Rings


  • 2 lbs wild blueberries, fresh or frozen
  • 2 tbsp lemon juice (from 1 small lemon)
  • ¼ tsp ground cloves
  • tsp ground cardamom
  • ¼ tsp coarse Kosher salt (if using table salt, use half the amount)
  • 2 tbsp "classic" powdered pectin
  • 2 cups granulated sugar
  • 1 tsp vanilla extract
  • 1 tsp unsalted butter


  • In a large stock pot, combine the blueberries with the lemon juice, spices and salt.
  • Over medium heat, bring the fruit to a simmer, and simmer for a few minutes until soft and juicy.  Mash the blueberries slightly, but be sure to leave whole berries, too.
    (If you're using wild blueberries, you probably don't need to smash them at all, but with larger cultivated blueberries, you'll want to smash some of them to thicken the texture of the preserves.)
  • Sprinkle the pectin over the bubbling fruit, and stir it in, then add the sugar.  Increase the heat to high, and bring to a vigorous boil, while stirring constantly (wear an oven mitt to protect your hand against splatter and steam burns).  Once the fruit is boiling hard enough that the bubbles can't be stirred down, continue to boil and stir for 1 full minute.  This boiling process activates the pectin to "set" the jam.  Remove from the heat and stir in the vanilla and butter (to reduce any foam).
  • Immediately ladle the hot jam into clean jars.  Wipe the rims of the jars clean, and screw on the lids.


Note:  If you can't get wild blueberries, regular blueberries (fresh or frozen) also work great in this recipe.
Storage Tips
  • Refrigerator:  If eating the jam right away, you can store it in the refrigerator for up to 1 month.
  • Pantry:  To store the jam at room temperature for up to 18 months, like in your pantry, or to give away as gifts, be sure to can the jars of jam in a hot water bath, according to standard canning procedures.  This ensures the lids are properly sealed to protect against contamination.
  • Freezer:  If you want to avoid canning the jam, and you have the freezer space, you can simply freeze the jars of jam for up to 12 months.  To store the jam in the freezer, be sure to leave 1/4 inch "head space" at the top of the jars to allow for expansion as the jam freezes.  Thaw out in the refrigerator overnight before eating.
Keyword Blueberry, Jam, Preserves