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Blackberry Lemon Cake with Blackberry Frosting

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  • Author: Kim Cooks Easy
  • Prep Time: 25 minutes
  • Cook Time: 35 minutes
  • Total Time: 1 hour
  • Yield: 12 slices 1x
  • Category: Dessert
  • Method: Baking
  • Cuisine: American
  • Diet: Vegetarian

Description

This Blackberry Lemon Cake is soft, citrusy, and perfectly sweet, with fresh blackberries folded into the batter for juicy bursts of flavor. Topped with a luscious blackberry buttercream frosting, this cake is light, fresh, and ideal for spring or summer gatherings!


Ingredients

Units Scale
  • For the Lemon Cake:
  • 2 1/2 cups all-purpose flour
  • 2 1/2 teaspoons baking powder
  • 1/2 teaspoon salt
  • 1 cup unsalted butter, softened
  • 1 3/4 cups granulated sugar
  • 4 large eggs
  • 1 tablespoon lemon zest
  • 1/4 cup fresh lemon juice
  • 1 teaspoon vanilla extract
  • 1 cup whole milk (or buttermilk)
  • 1 1/2 cups fresh blackberries (lightly coated in 1 tablespoon flour)
  • For the Blackberry Frosting:
  • 1/2 cup fresh blackberries
  • 1 tablespoon lemon juice
  • 1 cup unsalted butter, softened
  • 3 1/2 cups powdered sugar
  • 1 teaspoon vanilla extract
  • 23 tablespoons heavy cream (adjust for consistency)

Instructions

  • Make the Lemon Cake:
  • Preheat & Prep:
  • Preheat oven to 350°F (175°C).
  • Grease and line two 8-inch cake pans with parchment paper.
  • Mix the Dry Ingredients:
  • In a medium bowl, whisk together flour, baking powder, and salt.
  • Cream the Butter & Sugar:
  • In a large bowl, beat butter and sugar until light and fluffy.
  • Add eggs one at a time, beating after each addition.
  • Add Lemon & Vanilla:
  • Mix in lemon zest, lemon juice, and vanilla extract.
  • Combine Wet & Dry Ingredients:
  • Alternate adding flour mixture and milk in batches, mixing just until combined.
  • Fold in Blackberries:
  • Gently fold floured blackberries into the batter.
  • Bake:
  • Divide batter evenly between the prepared cake pans.
  • Bake for 30–35 minutes, or until a toothpick inserted in the center comes out clean.
  • Let cool in pans for 10 minutes, then transfer to a wire rack to cool completely.
  • Make the Blackberry Frosting:
  • Prepare the Blackberry Puree:
  • In a small saucepan, cook blackberries and lemon juice over medium heat for 5 minutes, mashing them as they soften.
  • Strain through a fine-mesh sieve to remove seeds, then let cool completely.
  • Make the Frosting:
  • In a large bowl, beat butter until creamy.
  • Gradually mix in powdered sugar, followed by vanilla extract and cooled blackberry puree.
  • Add heavy cream, 1 tablespoon at a time, until frosting reaches a smooth, spreadable consistency.
  • Assemble the Cake:
  • Frost & Decorate:
  • Place one cake layer on a serving plate. Spread a layer of frosting on top.
  • Add the second cake layer and frost the entire cake.
  • Garnish with fresh blackberries, lemon zest, or edible flowers if desired.

Notes

  • For a more intense lemon flavor, brush cake layers with lemon syrup (2 tablespoons lemon juice + 2 tablespoons sugar, heated until dissolved).
  • Storage: Keep refrigerated for up to 4 days. Let sit at room temp before serving.
  • Cupcake version: Bake at 350°F for 18–20 minutes.
  • Recipe Details

Nutrition

  • Calories: ~420
  • Sugar: In a large bowl, beat butter and sugar until light and fluffy.
  • Sodium: ~180mg
  • Fat: ~20g
  • Saturated Fat: ~12g
  • Unsaturated Fat: ~7g
  • Trans Fat: ~0g
  • Carbohydrates: ~55g
  • Fiber: ~2g
  • Protein: ~5g
  • Cholesterol: ~90mg