Published: by Absolutely Recipes, in the recipes category.

Blackberry Jam Recipe.

Ingredients:

2 LBs Fresh Blackberries (Gently Crushed)
2 1/2 Cups White Sugar
1 TBSP Fresh Lemon Juice

Recipe Instructions:

In a large shallow pan, add the blackberries and sugar and let stand on the counter for 4 hours.
Place pan on the stove over medium heat and slowly bring the blackberry mixture to a boil, continually stirring until the sugar is fully dissolved.
Continue to boil for 30 minutes, skimming the foam off the top of the blackberry mixture as it accumulates.
Drop a small amount of the blackberry mixture onto a cool plate and wait for about 1 minute to see if the mixture has thickened.
If thickened enough, add the lemon juice, stir to combine and turn off the heat.
If not thick enough, continue boiling the mixture and test every 5 minutes.
Ladle the jam into individual mason jars, up to 1/8" from the top of the jar, place the lid on the jar, tighten and flip the jar upside down.
Continue filling all of the jars until the jam has been used.
Allow to cool and turn the jars upright, checking the lids have popped up.
If a lid has not popped up, store the jar in the refrigerator, the others may be stored at room temperature until ready to use.

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