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Lemon Blackberry Cupcakes

These Lemon Blackberry Cupcakes are an easy yet seemingly-decadent cake mix dessert! The zesty flavor of lemon paired with the sweetness of a creamy icing and blackberries on top is truly irresistible.
Prep Time15 mins
Cook Time20 mins
Total Time35 mins
Course: Dessert
Cuisine: American
Keyword: blackberry cupcakes, blackberry lemon cupcakes, easy desserts for summer, lemon buttercream frosting
Servings: 20
Calories: 562kcal
Author: Jill


  • 1 Cupcake pan
  • 1 large piping bag with star tip


Cupcake Ingredients

  • 1 box Lemon Cake mix
  • 1 cup water
  • 1/2 cup unsalted butter softened
  • 3 large eggs

Lemon Frosting Ingredients

  • 2 cups unsalted butter softened
  • 4 ½ cups powdered sugar
  • 3 - 6 Heavy whipping cream
  • 2 tablespoons fresh lemon juice
  • 1 large lemon zested
  • 21 ounces blackberry pie filling

Crumble Topping Ingredients

  • ½ cup light brown sugar
  • ¼ cup sugar
  • 1 teaspoon ground cinnamon
  • ¼ teaspoon kosher salt
  • ½ cup unsalted butter melted
  • 1 ¼ cups flour



  • Preheat oven to 350 degrees and line cupcake pan with the liners.
  • Using a hand or standing mixer, beat together all ingredients until combined and mixed.
  • Scoop ¾ batter into the liners.
  • Bake in the oven for 19 minutes or until a light golden brown.
  • Allow to cool completely.

Frosting Directions

  • Using a standing mixer, beat together the butter, powdered sugar, heavy whipping cream, lemon juice and lemon zest until smooth and stiff with peaks.
  • Scoop frosting into the piping bag.

Crumble Directions

  • Combine all ingredients into a medium bowl.
  • Using your fingers, mix ingredients together until combined and crumble like.
  • Building the cupcake directions.
  • Pipe a ring of frosting onto the top of the cupcake.
  • Repeat step again to have a “wall” of frosting.
  • Scoop some of the blackberry pie filling into the center of the frosting.
  • Sprinkle some crumble on top.
  • Enjoy!


Calories: 562kcal | Carbohydrates: 76g | Protein: 3g | Fat: 29g | Saturated Fat: 18g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 7g | Trans Fat: 1g | Cholesterol: 73mg | Sodium: 235mg | Potassium: 88mg | Fiber: 2g | Sugar: 57g | Vitamin A: 860IU | Vitamin C: 4mg | Calcium: 81mg | Iron: 1mg