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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 and easy method to make homemade blackberry jam, perfect for preserving the sweet and tart flavors of fresh blackberries.
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Prep Time 15 minutes
Cook Time 30 minutes
Total Time 45 minutes
Servings: 6 jar
Calories: 250
Ingredients Equipment Method Notes

Ingredients
  

Main Ingredients
  • 4 cups blackberries
  • 3 cups granulated sugar
  • 2 tablespoons lemon juice

Equipment

  • large, heavy-bottomed pot
  • sterilized jars
  • canning funnel
  • ladle
  • boiling water canner

Method
 

Preparation
  1. Wash and sort the fresh blackberries, discarding any stems or damaged fruit.
  2. Combine the blackberries, sugar, and lemon juice in a large, heavy-bottomed pot.
Cooking
  1. Bring the mixture to a boil over medium-high heat, stirring constantly.
  2. Reduce heat and simmer, stirring occasionally, until the jam thickens.
  3. To test for doneness, place a small amount of jam on a chilled plate; if it wrinkles when pushed, it's ready.
Canning
  1. Carefully ladle the hot jam into sterilized jars, leaving 1/4 inch headspace.
  2. Process the filled jars in a boiling water bath for 10 minutes to seal.
  3. Remove jars and let cool completely on a wire rack; check seals after 24 hours.

Notes

For best results, use ripe, fresh blackberries. Adjust sugar to your taste, but note that sugar is crucial for proper gelling. Store opened jars in the refrigerator for up to 3 weeks.