Lemon Poppy Seed Cupcakes

Featured in Sweet Moments of Joy.

These bright lemon poppy seed cupcakes feature fresh lemon zest and juice, topped with a homemade blackberry frosting that uses real berries for authentic flavor.
Recipes Fives Halima
Updated on Tue, 22 Apr 2025 09:07:20 GMT
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These Lemon Poppy Seed Cupcakes are moist, tender, and bursting with fresh lemon flavor, complemented by crunchy poppy seeds. Topped with a vibrant blackberry frosting, these cupcakes are not only delicious but also visually stunning, making them perfect for spring gatherings or any special occasion.

When I first made these Lemon Poppy Seed Cupcakes, I was looking for a fresh and unique twist on traditional cupcake recipes. The combination of bright lemon flavor and sweet blackberry frosting creates a delightful balance that's perfect for spring. The cupcakes are moist and tender, with a buttery crumb that pairs beautifully with the tangy lemon and crunchy poppy seeds.

Essential Ingredients

For the Cupcakes

  • Butter: Use real butter for a rich, flavorful base.
  • Sugar: Granulated sugar adds the perfect amount of sweetness.
  • Eggs: Provide structure and richness to the cupcake batter.
  • Vanilla extract: Enhances the overall flavor of the cupcakes.
  • Lemon zest and juice: Provide a bright, tangy lemon flavor. Always use fresh lemon juice for the best taste.
  • Sour cream: Keeps the cupcakes moist and tender.
  • Flour: All-purpose flour provides the structure for the cupcakes.
  • Baking powder and baking soda: Help the cupcakes rise and create a fluffy texture.
  • Salt: Enhances the flavors in the batter.
  • Poppy seeds: Add a delightful crunch and subtle nutty flavor.

For the Blackberry Frosting

  • Blackberries: Fresh or frozen blackberries provide the base for the frosting.
  • Butter: Use unsalted butter for a smooth, creamy frosting.
  • Powdered sugar: Adds sweetness and structure to the frosting.
  • Vanilla extract: Enhances the flavor of the frosting.

Creating the Cupcakes

Prepare the Cupcake Batter

Mixing the Batter:
In a large bowl, cream together butter and sugar until light and fluffy. Add eggs one at a time, mixing well after each addition. Stir in vanilla extract, lemon zest, and lemon juice. In a separate bowl, whisk together flour, baking powder, baking soda, salt, and poppy seeds. Gradually add the dry ingredients to the wet ingredients, alternating with the sour cream, beginning and ending with the dry ingredients. Mix until just combined.

Bake the Cupcakes

Baking Instructions:
Preheat your oven to 350°F (175°C). Line a cupcake tin with cupcake liners. Fill each liner about 2/3 full with batter. Bake for 18-20 minutes, or until a toothpick inserted into the center comes out clean. Allow the cupcakes to cool completely before frosting.

Prepare the Blackberry Frosting

Making the Frosting:
Puree the blackberries in a blender or food processor. Push the puree through a metal sieve to remove the seeds. Boil the puree for about 10-20 minutes, or until it thickens like jam. Let it cool completely. In a large bowl, beat the butter until smooth. Gradually add the powdered sugar and beat until light and fluffy. Add the cooled blackberry puree and vanilla extract, and beat until well combined.

Assemble the Cupcakes

Frosting the Cupcakes:
Once the cupcakes are completely cooled, pipe or spread the blackberry frosting onto each cupcake. Garnish with fresh blackberries or a sprinkle of poppy seeds for added presentation.
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The fresh lemon zest and juice in this recipe are game-changers. They provide a bright, tangy flavor that pairs beautifully with the moist, tender crumb of the cupcakes. My family loves how the poppy seeds add a subtle crunch and nutty flavor, making these cupcakes a delightful treat for any occasion.

Serving Suggestions

Serve these Lemon Poppy Seed Cupcakes with Blackberry Frosting at spring gatherings, bridal showers, or any special occasion. They pair beautifully with a cup of tea or a refreshing lemonade. For added presentation, garnish with fresh blackberries or a sprinkle of poppy seeds before serving.

Customize Your Cupcakes

Add Citrus Zest: Mix in a bit of lime or orange zest to the cupcake batter for an extra citrus kick. Swirl the Frosting: Create a beautiful swirl effect with the blackberry frosting using a piping bag. Mix-ins: Add a handful of white chocolate chips or dried berries to the cupcake batter for extra texture and flavor. Gluten-Free Option: Use a gluten-free flour blend to make the cupcakes gluten-free.

Storage and Reheating

Store leftover cupcakes in an airtight container at room temperature for up to 3 days. To keep the frosting fresh, store them in the refrigerator and bring to room temperature before serving. Avoid freezing, as the frosting may change in texture upon thawing.

These Lemon Poppy Seed Cupcakes with Blackberry Frosting are a delightful and unique treat that combines bright lemon flavor with sweet blackberry frosting. Whether you serve them at a spring gathering or enjoy them as a special treat, these cupcakes are sure to impress.

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Frequently Asked Questions

→ Can I use bottled lemon juice instead of fresh?
Fresh lemon juice is strongly recommended as bottled juice can be too sour and bitter. You'll need 1-2 medium lemons for this recipe - be sure to zest them first before juicing.
→ How can I make the blackberry frosting if blackberries aren't in season?
Frozen blackberries work perfectly in this recipe! Alternatively, you can substitute with 3 tablespoons of blackberry preserves from the grocery store, though the flavor is better with real berries.
→ Can I make these cupcakes ahead of time?
Yes! Make the cupcakes and blackberry puree the day before, storing the cupcakes in an airtight container at room temperature and the cooled puree in the refrigerator. Then make the frosting and assemble on the day you plan to serve them.
→ Why did my cupcakes sink in the middle?
This typically happens from overmixing the batter or opening the oven door too early during baking. Mix just until ingredients are combined, and avoid doubling the recipe as this often leads to overmixing.
→ How do I get my frosting the right consistency?
If your frosting is too thick, add a bit more blackberry puree or cream, one teaspoon at a time. If it's too thin, add more powdered sugar, about 1/4 cup at a time, until you reach the desired piping consistency.
→ How long do these cupcakes stay fresh?
These cupcakes are best enjoyed the day they're made but can be stored in an airtight container at room temperature for up to 6 hours, or in the refrigerator for up to 3 days.

Bright Citrus Berry Frosted Treats

Light, fluffy cupcakes infused with fresh lemon and crunchy poppy seeds, topped with a vibrant blackberry frosting for the perfect sweet-tart balance.

Prep Time
45 Minutes
Cook Time
18 Minutes
Total Time
63 Minutes
By: Halima

Category: Decadent Desserts

Difficulty: Intermediate

Cuisine: American

Yield: 14 Servings (14 cupcakes)

Dietary: Vegetarian

Ingredients

→ Lemon Poppy Seed Cupcakes

01 1 1/2 cups all-purpose flour
02 1 teaspoon baking powder
03 1/2 teaspoon baking soda
04 1/4 teaspoon salt
05 1/2 cup unsalted butter, softened to room temperature
06 1 cup white sugar
07 2 tablespoons lemon zest
08 2 large eggs
09 1 teaspoon vanilla extract, room temperature
10 2/3 cup sour cream, room temperature
11 3 tablespoons lemon juice, freshly squeezed
12 1 1/2 tablespoons poppy seeds

→ Blackberry Frosting

13 1 1/2 cups blackberries, fresh or frozen
14 1 cup unsalted butter, softened to room temperature
15 4 cups powdered sugar
16 1/4 teaspoon salt
17 1 tablespoon cream, if needed

Instructions

Step 01

Preheat the oven to 350F degrees and line 2 muffin pans with liners. You'll end up with about 14 cupcakes in total.

Step 02

In a large bowl sift together the flour, baking powder, baking soda and salt. Give them a whisk.

Step 03

In a separate large bowl, beat the butter, sugar and lemon zest until fluffy.

Step 04

Beat in the eggs and vanilla extract.

Step 05

With the mixer on low speed, beat in about 1/2 of the sour cream followed by about 1/2 of the flour mixture. Turn off the mixer and scrape down the sides of the bowl. Repeat the process with the rest of the sour cream and flour mixture.

Step 06

Gently fold in the lemon juice and poppy seeds.

Step 07

Spoon the batter into the prepared muffin pans filling each about 2/3 full. You should get about 14 cupcakes.

Step 08

Bake 1 tray at a time on the middle rack of the oven for 16-20 minutes, or until the tops look set and an inserted toothpick comes out clean. Cool in the pan for at least 10 minutes, then continue cooling on a wire rack.

Step 09

Add the blackberries to blender or food processor and blend until smooth. Press the puree through a sieve to remove the seeds. I typically do about 1/2 at a time and use the back of a metal spoon to push it through.

Step 10

Transfer the seedless puree to a small-medium saucepan over low heat. Bring the mixture to a gentle simmer while stirring occasionally for 10-20 minutes, or until the puree is thick like jam. Remove from the heat and cool completely. You should have about 2-4 tablespoons in total.

Step 11

In a large bowl, beat the butter until soft. Turn the mixer down to low speed and beat in 2 cups powdered sugar and the salt.

Step 12

Beat in 2 tablespoons of the thick, cooled puree.

Step 13

Beat in the rest of the powdered sugar about 1/2 cup at a time, adding in a little more blackberry puree or cream as needed.

Step 14

Transfer the frosting to a piping bag (I used a 1M tip) and frost the cupcakes, or frost with a knife.

Notes

  1. You will need 1-2 medium sized lemons for this recipe. Zest the lemons first before squeezing the juice. Do not use lemon juice from the bottle because it is too sour and bitter.
  2. If you'd like a thin layer of frosting for each cupcake instead of piping on the frosting, feel free to halve the frosting recipe.
  3. Because the puree needs to cool fully before moving on with the frosting, I often make the blackberry puree first. Then make the cupcakes. By the time the cupcakes are baked and cooled - the reduced blackberry puree should be cooled and you'll be ready to make the frosting.
  4. Instead of using fresh/frozen blackberries and boiling them down, you could use blackberry preserves from the grocery store. You will need 3 tablespoons total.
  5. I do not recommend doubling this recipe, as it leads to over mixing the batter which can cause the cupcakes to be tough or sink in the middle.
  6. Store in an airtight container at room temperature for up to 6 hours, or in the fridge for up to 3 days.

Tools You'll Need

  • Muffin pans
  • Cupcake liners
  • Mixing bowls
  • Electric mixer
  • Sieve
  • Blender or food processor
  • Saucepan
  • Piping bag with tip (optional)
  • Wire cooling rack

Allergy Information

Please check ingredients for potential allergens and consult a health professional if in doubt.
  • Contains dairy (butter, sour cream)
  • Contains eggs
  • Contains wheat/gluten (flour)

Nutrition Facts (Per Serving)

It is important to consider this information as approximate and not to use it as definitive health advice.
  • Calories: 462
  • Total Fat: 24 g
  • Total Carbohydrate: 61 g
  • Protein: 3 g