A soft lemon cupcake, a bright curd-filled center, and a swirl of vanilla buttercream.
I have a very specific rule with lemon desserts…..if the lemon flavor disappears after the first bite, I’m disappointed. 🍋
For me, lemon should actually taste like lemon.
That’s probably why I’ve always loved lemon desserts with something sharp and citrusy cutting through all the sweetness. A little zest in the cake is good, but sometimes I want that extra hit.
So these cupcakes were made with exactly that in mind.
There’s fresh lemon zest and juice in the cake, but the real lemon moment comes from the homemade curd tucked into the center. It’s bright, silky, and tart enough to cut through the sweetness of the cupcake. 😍
Then comes the vanilla buttercream, bringing just enough sweetness to balance that sharp citrus flavor. 🧁
Lemony, luscious, light, and layered….. every part has a job.
And when you finally reach that little pool of lemon curd in the middle, you understand why I didn’t want to make just another lemon cupcake.
If lemon desserts are your thing, don’t stop here…..my Lemon Curd Cookies and Lemon Poppy Seed Cake are worth trying too.
Why You’ll Love This Recipe
- Fresh Lemon Flavor: Lemon zest and fresh lemon juice go directly into the cupcake batter.
- Creamy Lemon Center: Homemade lemon curd gives each cupcake a little surprise in the middle.
- Simple Buttercream: Vanilla buttercream adds a sweet, creamy finish without taking away from the lemon.
- Soft Cupcake Base: The combination of butter, milk, and eggs gives you a simple cupcake base for the filling and frosting.
- Pretty Without Complicated Decorating: A simple buttercream swirl and a small lemon slice or mint sprig are enough to finish them.
That Lemon Curd Center
This is the part that makes these cupcakes more interesting than a regular lemon cupcake.
The cupcake already has lemon zest and juice in the batter, but the curd gives you that extra hit of lemon when you reach the center.
I also like the contrast between the bright lemon curd and the sweet vanilla buttercream. You get something fresh in the middle and something creamy on top.
A Few Things to Keep in Mind
- Let the Lemon Curd Cool: Make sure the curd has cooled completely before filling the cupcakes.
- Cool the Cupcakes Completely: Wait until the cupcakes are completely cool before making the center hole and adding the curd.
- Don’t Make the Hole Too Deep: You only need enough space in the center to hold the lemon curd.
- Keep the Buttercream Smooth: Beat the buttercream until it is light and creamy before piping.
Lemon Filled Cupcakes Recipe
Ingredients
Equipment
Method
- Add the egg yolks, granulated sugar, lemon juice, and lemon zest to a saucepan. Cook over low heat, stirring constantly, until thickened. Add the butter and stir until smooth, then strain and let cool completely.
- Add the softened butter and powdered sugar to a mixing bowl.
- Add vanilla extract and Mix until light and creamy.
- Add the heavy cream, and salt.
- Beat until smooth, fluffy, and creamy. Set aside.
- Add the softened butter and granulated sugar to a mixing bowl.
- Mix until light and creamy, then add the eggs and mix well.
- Add the vanilla extract, lemon zest, and lemon juice to the wet mixture and mix until combined.
- In a separate bowl, whisk together the all-purpose flour, baking powder, and salt.
- Gradually add the dry ingredients to the wet mixture and mix gently.
- Add the milk and mix until just combined.
- Add the lemon juice and mix until the batter is smooth.
- Divide the batter evenly among the lined cupcake cups.
- Bake at 180°C (350°F) for 18–21 minutes, or until a toothpick inserted into the center comes out clean.
- Let the cupcakes cool completely. and make a small hole in the center of each cupcake.
- Fill with the cooled lemon curd.
- Pipe the prepared vanilla buttercream over the cooled cupcakes.
- Decorate with lemon slices or mint sprigs, if desired. Serve and enjoy.
Nutrition
Tried this recipe?
Let us know how it was!How to Fill Lemon Cupcakes Without Making a Mess
Once the cupcakes are completely cool, make a small hole in the center of each one. You only need enough space for the lemon curd to sit inside the cupcake without overflowing.
Add the cooled lemon curd carefully, then pipe the buttercream over the top. The frosting covers the opening and gives you a clean finish while keeping that bright lemon center hidden inside.
The key is not to overfill the cupcakes. A little lemon curd in the center is enough to give you that fresh citrus flavor when you take a bite.
A Few Ways to Change These Cupcakes
- Add More Lemon: Add a little extra lemon zest to the buttercream for a stronger citrus finish.
- Try a Berry Filling: Replace the lemon curd with a berry filling for a different fruit combination.
- Add Poppy Seeds: Mix poppy seeds into the cupcake batter for a classic lemon-poppy seed variation.
- Change the Garnish: Finish with extra lemon zest instead of lemon slices or mint.
- Make Mini Cupcakes: Use the same batter for smaller cupcakes, keeping an eye on the baking time.
That bright lemon flavor is hiding in more than just the cupcake. 🍋🤍
How to Store Lemon Filled Cupcakes
- Refrigerator: Keep decorated cupcakes covered and refrigerated. Bring them to room temperature before serving.
- Lemon Curd: Store leftover lemon curd in a covered container in the refrigerator.
- Buttercream: Keep leftover buttercream covered and refrigerated until needed.
Frequently Asked Questions
- Why did my cupcakes sink in the middle?
This can happen if the cupcakes are underbaked. Bake until a toothpick inserted into the center comes out clean. - Why is my lemon curd too runny?
The curd needs to be cooked over low heat while stirring constantly until it thickens before adding the butter and straining it. - Why did my lemon curd become lumpy?
Keep the heat low and stir continuously while cooking. Straining the curd after cooking also helps give it a smoother texture. - How do I keep the buttercream from becoming too soft?
Make sure the butter is softened rather than melted, and beat the buttercream until it becomes light, smooth, and fluffy. - Why is my cupcake filling leaking out?
Make sure the center hole is not too large and avoid overfilling it with lemon curd. Leave enough space for the buttercream to sit neatly on top.
If you’ve made these Lemon Filled Cupcakes, I’d love to hear how they turned out! Don’t forget to leave a rating and share your thoughts in the comments below. 💌
I’ve always found joy in the kitchen. Since I was seven, cooking has been my favorite way to learn, create, and unwind. From baking sweet treats to exploring global flavors and brewing coffee, I’m always chasing my next delicious discovery.