Blackberry Jam

Last night I finished making a batch of blackberry jam, with berries picked from a secret spot. It’s actually one of those places where you wonder if you’re going to trip over a body . . . but . . . free blackberries!

This recipe is made without added pectin, just the berries, sugar and lemon juice.

I don’t really eat a lot of jam, but I had a request to make this and ended up really enjoying it on an English Muffin this morning. I put a bit of Greek yogurt on as well, but cream cheese or crème fraîche would be wonderful with it too.

It takes a bit of work to get the seeds out of the jam, but I think it is a worthwhile job so you don’t bite down on the hard seeds. I found it easier to get the seeds out when the berries had cooked down a bit.

After removing the seeds, the rest of the process is quite simple. You will need some jars, and if you plan to store the jam in a cupboard you will need the proper lids etc. For freezer jam you can use any kind of jar. I used a thermometer to check the temperature, but you can use this guide to help figure out when it is done if you don’t have thermometer.

What you need:

  • 6 cups blackberries, fresh or frozen
  • 3 cups sugar (some recipes call for more, but I like it this way)
  • 1 tablespoon lemon juice

What you do:

  1. In a large pot, heat the clean blackberries on medium heat until they start falling apart.
  2. Push the berries through a strainer, food mill or chinois. If you use a strainer, as I did, it takes a bit of time and energy to push all the pulp through with the back of a spoon.
  3. Boil water in a large pot, then put your jars in there to sterilize. Turn off the heat and remove the jars with tongs. Place the lids in the pot of hot water. I always use new lids when canning to make sure that they seal properly.
  4. Place the strained berry pulp, sugar and lemon juice in a large pot and bring to a rolling boil, stirring continually. Bring the mixture to 105C/220F, then remove them from the heat.
  5. Fill the jars to 1cm below the top. I used a canning funnel to fill the jars so I had no spills – yay! Use a clean cloth to clean any drips from the rims of the jars.
  6. Use tongs to remove the lids from the hot water and place them on top of the jars. Screw the lids on, and then leave the jars sitting where they are until they have sealed. Over the next hour or so you should hear the tell-tale pinging sound that indicates that the jars have sealed. If the jars have sealed properly the lid should be slightly concave, and will not bend when you push down on it; any jars that haven’t sealed properly can be stored in the fridge or freezer. The other jars can be kept in a cool cupboard for a few years.

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