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–+ servings
close up shot of a 3 layer lemon cake filled with blackberry cake filling and frosted with blackberry buttercream

Blackberry Cake Filling with Fresh or Frozen Blackberries

4 from 1 rating
3 ingredient blackberry cake filling is easy to make and cooks quickly! Use this sweet filling in layer cakes, cupcakes, swirled through cheesecake, baked into sweet rolls, and more!
Prep Time: 5 minutes
Cook Time: 35 minutes
Total Time: 40 minutes
Servings: 12
By: Sharon Lachendro
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Ingredients

  • 2 pounds Frozen Blackberries
  • ¼ cup Fresh Lemon Juice
  • ½ cup Granulated Sugar

Instructions

  • Add the filling ingredients to a medium-sized saucepan and cover. Heat over medium heat.
    overhead shot of ingredients in a red Le Creuset dutch oven to make Blackberry Cake Filling
  • Allow the berries to defrost and cook for about 10 minutes. Transfer the mixture to a heat proof bowl or quart sized measuring cup and use an immersion blender to carefully blend everything until there are no whole berries remain.
  • Once blended, strain through a fine mesh strainer over the saucepan. This is to remove all the seeds.
    overhead shot of a blended blackberry cake filling ready to be cooked to thicken
  • Continue to cook on medium heat, stirring frequently, around 25-30 minutes. When done, the filling will have halved in quantity and reached a loose, jammy consistency. It will continue to thicken/set as it cools.
    overhead shot of thickend blackberry cake filling in a red Le Creuset dutch oven with a spatula
  • Cool to room temperature then refrigerate until ready to use.

Notes

  1. Please read the post for helpful tips on making this cake filling.
  2. Cook time does not include chilling time.
  3. Test the sweetness level after blending and add more sugar if necessary to suit your taste.
  4. To blend the berry compote, you can use an Immersion Blender, regular Blender, Masher, or Nutribullet.
  5. The blackberry filling should be chilled before use.

Recommended Products

Saucepan
Immersion Blender
Fine Mesh Strainer
Fine Mesh Strainer
Rubber Spatula

Nutrition Information

Calories: 66kcal | Carbohydrates: 16g | Protein: 1g | Fat: 0.4g | Saturated Fat: 0.01g | Polyunsaturated Fat: 0.2g | Monounsaturated Fat: 0.04g | Sodium: 1mg | Potassium: 128mg | Fiber: 4g | Sugar: 12g | Vitamin A: 162IU | Vitamin C: 18mg | Calcium: 22mg | Iron: 0.5mg

Disclaimers

As an Amazon Associate and member of other affiliate programs, I earn from qualifying purchases.

Nutrition Facts are estimated and aren't always accurate. Please consult a doctor or nutritionist if you have special dietary needs.

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