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Blackberry Frosting Recipe

4.4 from 142 reviews

A luscious and vibrant blackberry frosting made with fresh blackberries, butter, and powdered sugar. Perfect for adding a fruity twist to your cakes and cupcakes with a smooth, creamy texture and a hint of lemon to brighten the flavor.

Ingredients

Scale

Blackberry Puree

  • 1 cup fresh blackberries
  • 2 tablespoons lemon juice

Frosting

  • 1 cup butter (2 sticks), room temperature
  • 4 cups powdered sugar
  • 1 teaspoon vanilla extract
  • 1 tablespoon milk or cream (plus more if needed)

Instructions

  1. Prepare Blackberry Puree: Add the fresh blackberries and lemon juice to a small saucepan. Heat over medium heat, bringing the mixture to a simmer while stirring frequently. Cook for about 20 minutes, allowing the blackberries to soften and mash down until you achieve approximately 1/3 cup of thick blackberry puree.
  2. Strain Puree (Optional): For a smooth frosting without seeds or skins, strain the blackberry puree through a fine mesh strainer or process it in a food processor. Let the puree cool completely to room temperature before using.
  3. Combine Butter and Puree: In a large mixing bowl, add the softened butter and the cooled blackberry puree. Use an electric mixer to beat them together until the mixture is smooth and well combined.
  4. Add Powdered Sugar: Gradually add the powdered sugar to the butter and puree mixture. Beat on medium-high speed until the frosting is creamy, smooth, and fully incorporated.
  5. Incorporate Milk and Vanilla: Add the milk or cream and vanilla extract to the frosting. Beat again until well combined. Adjust the consistency by adding more milk or cream, one tablespoon at a time, if the frosting is too thick.
  6. Frost Your Dessert: Once your cake or cupcakes have cooled completely, frost them with the blackberry buttercream. You can spread it smoothly or use a piping bag to create decorative designs as desired.

Notes

  • Straining the blackberry puree is optional but recommended for a seed-free frosting.
  • If the frosting is too thick, add milk or cream gradually to reach desired consistency.
  • Use fresh blackberries for the best flavor; frozen can be used but may require extra cooking time.
  • Store leftover frosting in an airtight container in the refrigerator for up to 3 days. Rewhip before using.
  • This frosting pairs beautifully with vanilla, lemon, or chocolate cakes.

Keywords: blackberry frosting, blackberry buttercream, berry frosting, cake frosting, fruit frosting