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Lemon Poppy Seed Cupcakes with Blackberry Frosting Recipe


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4 from 30 reviews

  • Author: Emma
  • Total Time: 2 hours (including cooling and frosting preparation)
  • Yield: 14 cupcakes 1x

Description

These Lemon Poppy Seed Cupcakes are a bright, tangy treat perfectly balanced with a hint of sweetness and a delightful poppy seed crunch. Topped with a luscious blackberry frosting made from fresh or frozen blackberries, these cupcakes are bursting with vibrant flavors ideal for any occasion.


Ingredients

Scale

Cupcakes

  • 1 1/2 cups all-purpose flour
  • 1 teaspoon baking powder
  • 1/2 teaspoon baking soda
  • 1/4 teaspoon salt
  • 1/2 cup unsalted butter, softened to room temperature
  • 1 cup white sugar
  • 2 tablespoons lemon zest
  • 2 large eggs
  • 1 teaspoon vanilla extract, room temperature
  • 2/3 cup sour cream, room temperature
  • 3 tablespoons lemon juice, freshly squeezed
  • 1 1/2 tablespoons poppy seeds

Blackberry Frosting

  • 1 1/2 cups blackberries, fresh or frozen
  • 1 cup unsalted butter, softened to room temperature
  • 4 cups powdered sugar
  • 1/4 teaspoon salt
  • 1 tablespoon cream, or more if needed

Instructions

  1. Preheat Oven and Prepare Pans: Preheat your oven to 350°F (175°C). Line two muffin pans with cupcake liners to prevent sticking and ensure easy cleanup.
  2. Mix Dry Ingredients: In a bowl, sift together the all-purpose flour, baking powder, baking soda, and salt. This ensures an even distribution of leavening agents and a lighter cupcake texture.
  3. Cream Butter, Sugar, and Lemon Zest: In a separate mixing bowl, beat the softened butter, white sugar, and lemon zest together until the mixture becomes fluffy and light. This will help incorporate air into the batter for a tender crumb.
  4. Add Eggs and Vanilla: Beat in the eggs one at a time, ensuring each is fully incorporated before adding the next. Then mix in the vanilla extract, enhancing the cupcake’s flavor.
  5. Combine Sour Cream and Flour Mixture: Alternately add the sour cream and the sifted flour mixture to the wet ingredients, beginning and ending with the flour. Mix gently to avoid overworking the batter.
  6. Fold in Lemon Juice and Poppy Seeds: Gently fold in the freshly squeezed lemon juice and poppy seeds to integrate their flavors without deflating the batter.
  7. Fill Muffin Pans and Bake: Spoon the batter evenly into the prepared muffin pans, filling each liner about three-quarters full. Bake in the preheated oven for 16-20 minutes, or until a toothpick inserted into the center comes out clean.
  8. Prepare Blackberry Puree: While the cupcakes bake, blend the blackberries until smooth. Strain the puree through a fine mesh to remove seeds for a silky frosting texture. Cook the blackberry puree gently until it thickens slightly, then set aside to cool.
  9. Make Blackberry Frosting: Beat the softened butter, powdered sugar, and salt in a large bowl until light and fluffy. Gradually add the cooled blackberry puree, mixing well to combine. Adjust frosting consistency by adding more cream or puree as needed.
  10. Frost Cupcakes: Once cupcakes have cooled completely, spread or pipe the blackberry frosting evenly over the tops. Serve and enjoy your vibrant lemon poppy seed cupcakes with blackberry frosting!

Notes

  • For best results, use room temperature ingredients to ensure proper batter consistency.
  • Fresh lemon zest and juice provide the brightest flavor, but bottled lemon juice can be used in a pinch.
  • Adjust the blackberry frosting thickness by adding cream gradually to avoid it being too runny.
  • The blackberry puree can be prepared a day ahead and stored refrigerated to save time.
  • Make sure cupcakes are completely cooled before frosting to prevent melting.
  • Prep Time: 30 minutes
  • Cook Time: 20 minutes
  • Category: Dessert
  • Method: Baking
  • Cuisine: American