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Blackberry Freezer Jam

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Recently, blackberry prices at one of my local grocery store have been amazing! My freezer only contained homemade strawberry jam so I had to take this opportunity to make blackberry jam.

Freezer jam is so simple to make. It’s so easy that it’s crazy to not make some when you have the opportunity for fresh fruit at an amazing price. Plus, it tastes so much better that anything you can buy in a jar at the store.

Blackberry Freezer Jam | realmomkitchen.com

Now you can use a potato masher to smash the berries, but I like to pulse them in my food processor. Pulsing in a blender will also work well.

Blackberry Freezer Jam | realmomkitchen.com

Blackberry Freezer Jam | realmomkitchen.com

Blackberry Freezer Jam

Real Mom Kitchen

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  • 6 cups blackberries should make 3 cups crushed
  • 5 ¼ cups sugar
  • 1 package Sure Jell fruit pectin


  • Wash and prepare glass or plastic containers to store jam in. You can buy these or I have found that old sour cream containers work just fine or plastic containers from the grocery store that work for the freezer.
  • Next, crush your berries using a potato masher or food processor. I know the instructions inside the package say not the puree but I always have with my blackberry jam and it has always worked.
  • Measure your sugar into a bowl. Add you 3 cups crushed berries and mix. Let stand ten minutes stirring occasionally. In a small saucepan, mix the box of sure jell with ¾ cup cold water. This may start out lumpy. Bring the water/sure jell mixture to a boil and boil for 1 minute stirring constantly. Remove from heat and add to fruit mixture.
  • Stir constantly for about 3 minutes until sugar is completely dissolved and no longer grainy( a few sugar crystal may remain). Pour into prepared containers leaving ½ inch at top for expansion during freezing. Cover with lids.
  • Let stand at room temperature for 24 hours. Then store in freezer for up to 1 year. Thaw in refrigerator. Refrigerate up to 3 weeks (I've done mine longer). Makes 5 cups.
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