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A jar of homemade blackberry jam with fresh blackberries on a wooden surface.

Quick way to grow Blackberry Jam (Homemade)

This recipe provides a quick method to make homemade blackberry jam. It involves cooking blackberries with sugar and lemon juice until the jam thickens, perfect for spreading on toast or scones.
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Prep Time 15 minutes
Cook Time 30 minutes
Total Time 45 minutes
Servings: 6 jars
Calories: 250
Ingredients Equipment Method Notes

Ingredients
  

Main Ingredients
  • 4 cups blackberries
  • 4 cups granulated sugar
  • 1 tablespoon lemon juice

Equipment

  • large pot
  • jars
  • ladle
  • canning pot (for water bath)

Method
 

Preparation
  1. Wash and sort the blackberries, discarding any unripe or damaged ones. Transfer them to a large pot.
Cooking the Jam
  1. Add sugar and lemon juice to the pot with the blackberries. Stir well to combine.
  2. Cook over medium-high heat, stirring frequently, until the mixture boils.
  3. Reduce heat and simmer, stirring occasionally, until the jam thickens and reaches desired consistency.
Jarring and Storage
  1. Carefully ladle the hot jam into sterilized jars, leaving about 1/4 inch headspace.
  2. Seal the jars and process them in a boiling water bath for 10 minutes to ensure proper sealing.

Notes

For a smoother jam, mash the blackberries slightly before cooking or use an immersion blender after cooking. The jam can be stored in a cool, dark place for up to 1 year, or in the refrigerator after opening.