Low added sugar blackberry jam

Having picked a lot of delicious blackberries at Holmestead Farm as part of my fun U-Pick experience, I set out to create some awesome low added sugar blackberry jam, using Pomona’s Universal Pectin.

Yield: about 5 cups (5 jelly jars)
Thoroughly rinse and pick through your blackberries

  • 4 cups blackberries
  • 1 cup honey
  • 2 teaspoons Pomona’s Pectin
  • 2 teaspoons calcium water
  • 1/4 cup lemon juice

1. Prepare jars by washing and rinsing. I leave the jars in the hot water bath canner while I bring it up to a boil.

2. Measure fruit into pan with lemon juice (you can use lime juice instead if you prefer).

3. Add calcium water into pan and stir well.

4. Measure room temperature honey into separate bowl. Thoroughly mix proper amount of pectin powder into honey (if you prefer to use sugar, you can use 3/4 to 2 cups of it instead of honey).

5. Bring fruit to boil. If you prefer a chunky texture just stir the fruit mix – if you want something a bit smoother, you can mash the fruit or even feed it through a food mill to remove seeds. If you want seedless, add an extra cup of fruit to correct for the loss of bulk in the milling process. Add pectin and honey mix and stir vigorously for 1-2 minutes while cooking to dissolve pectin. Return to boil and remove from heat.

6. Fill jars to 1/4″ of top. Wipe rims clean. Screw on 2-piece lids. Put filled jars in boiling water to cover. Boil 10 min. (add 1 min. more for every 1,000 ft. above sea level). Remove from water. Let jars cool. Check seals–lids should be sucked down. Lasts about a hypothetical 3 weeks once opened, but if you’re anything like me it’s doubtful the jar will last more than 3 days 😉

The most awesome part about the Pomona’s Pectin is that you can scale the recipes either way – you can double it or halve it without in any way affecting the quality of the finished product. You cannot do this with conventional pectin, hence my preference for Pomona’s.

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2 Responses to “Low added sugar blackberry jam”

  1. 1
    Kate

    Hi! I know this recipe is a few years old but just wanted to let you know that I followed it exactly and somehow only ended up with just over one jelly jar full!! What did I do wrong?!

  2. 2

    you can’t have put in 4 cups of fruit, is all I can say. If you put in 4 cups of fruit you will get at least 4 cups of jam.


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