Ingredients:

  • 4 cups fresh blueberries (600g)
  • 2 cups granulated sugar (400g)
  • 1/4 cup fresh lemon juice (60ml)
  • 1 teaspoon ground cinnamon (optional)
  • Clean glass jars and lids (1-pint jars recommended)

Instructions:

  1. Rinse the blueberries thoroughly and remove any stems.
  2. In a large pot, combine blueberries and lemon juice.
  3. Use a potato masher to gently break down the blueberries, creating a chunky mixture.
  4. Stir in the granulated sugar and optional cinnamon.
  5. Heat over medium heat until sugar dissolves, stirring occasionally. Bring to a boil and cook for about 15-20 minutes, stirring frequently, until the jam thickens.
  6. Remove the pot from heat and let it cool slightly. Using a ladle and canning funnel, carefully fill sterilized jars, leaving about 1/4 inch of headspace.
  7. Wipe the rims of the jars