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Classic Blueberry Jam Recipe

A close-up of a jar filled with glistening homemade blueberry jam on a wooden cutting board.

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A straightforward recipe for making delicious blueberry jam at home, perfect for canning or everyday enjoyment.

Ingredients

Scale
  • 4 cups fresh blueberries
  • 2 cups granulated sugar
  • 1/4 cup lemon juice
  • 1 tablespoon lemon zest
  • 1 teaspoon vanilla extract

Instructions

  1. Wash and rinse blueberries.
  2. In a large pot, combine blueberries, sugar, and lemon juice.
  3. Cook over medium heat, stirring occasionally, until sugar dissolves.
  4. Bring the mixture to a boil, then reduce heat and simmer for 20-30 minutes, stirring frequently, until the jam thickens. You can test for doneness by placing a small amount on a chilled plate; it should set up.
  5. Stir in lemon zest and vanilla extract.
  6. Remove from heat and skim off any foam.
  7. Ladle hot jam into sterilized jars, leaving 1/4 inch headspace.
  8. Wipe jar rims clean and secure lids.
  9. Process in a boiling water bath for 10 minutes (adjust for altitude if necessary).
  10. Remove jars from canner and let cool completely on a towel-lined counter.

Notes

  • For a no-pectin jam, cook longer until thickened.
  • This recipe makes a small batch, ideal for quick use or gifting.
  • Adjust sugar to your preference for a lower sugar jam.
  • Add a vanilla bean pod during cooking for a deeper vanilla flavor.

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