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Judy John

Blueberry Cake Filling

This Blueberry Cake Filling offers sweet-tart berry flavor, vibrant color, and a smooth texture perfect for layering cakes, cupcakes, pastries, and desserts.
Print Recipe
Prep Time 15 minutes
Cook Time 12 minutes
Total Time 27 minutes
Servings: 18 servings
Course: Dessert, Snack
Cuisine: American
Calories: 48
Ingredients Equipment Method Notes

Ingredients
  

Blueberry Filling
  • 3 cups blueberries fresh or frozen
  • 0.5 cup granulated sugar
  • 2 tbsp cornstarch
  • 2 tbsp water for slurry
  • 1 tbsp lemon juice fresh

Equipment

  • Mixing Bowl
  • Saucepan
  • Whisk
  • Spatula
  • Measuring Cups
  • Freezer
  • Tray
  • Fine Mesh Strainer
  • Storage Container
  • Oven

Method
 

  1. Combine blueberries, sugar, and lemon juice in a saucepan.
  2. Cook over medium heat until the berries begin releasing juices.
  3. Whisk cornstarch and water together until completely smooth.
  4. Pour the slurry into the berry mixture while stirring constantly.
  5. Cook until the filling thickens and develops a glossy texture.
  6. Cool completely before spreading between cake layers or desserts.
  7. Chill for easier assembly and a thicker, more stable consistency.

Notes

For a softer filling, reduce cooking time slightly. For a thicker texture, cook a little longer after adding the slurry. Freeze cooled filling in airtight containers for up to three months and thaw overnight in the refrigerator. Chill before assembly to prevent sliding layers. Customize flavor with vanilla, cinnamon, lemon zest, or mixed berries. Store covered in the refrigerator for up to one week.