These lemon cupcakes are pure sunshine in dessert form—light, fluffy, and bursting with bright, fresh lemon flavor. Topped with a silky lemon buttercream that’s perfectly balanced between sweet and tangy, they’re the ultimate treat for spring, summer, or any time you need a little brightness.
Made with fresh lemon juice and zest, these cupcakes are incredibly moist and tender. The buttercream is smooth, creamy, and packed with lemon flavor. Whether for a birthday party, baby shower, or just because, these cupcakes will bring a smile to everyone’s face.
Instructions
Prep and Preheat
Preheat your oven to 350°F (175°C). Line a 12-cup muffin pan with paper liners.
Combine Dry Ingredients
In the bowl of a stand mixer fitted with the paddle attachment, combine the cake flour, sugar, baking powder, baking soda, and salt. Mix on low speed for 30 seconds to combine.
Add Butter
Add the softened butter to the dry ingredients. Mix on low speed until the mixture resembles coarse meal, with the butter evenly distributed.
Combine Wet Ingredients
In a separate bowl or measuring cup, whisk together the eggs, buttermilk, lemon juice, lemon zest, and vanilla until smooth.
Mix Batter
With the mixer on low speed, gradually add about half of the wet ingredients to the dry mixture. Increase speed to medium and beat for 1-2 minutes until light and fluffy. Scrape down the sides. Add the remaining wet ingredients and beat for another 30 seconds until just combined and smooth.
Fill Cupcake Liners
Divide the batter evenly among the prepared cupcake liners, filling each about ⅔ full. Tap the pan gently on the counter to release any air bubbles.
Bake
Bake for 18-22 minutes, until a toothpick inserted in the center of a cupcake comes out clean. Let cool in the pan for 5 minutes, then transfer to wire racks to cool completely.
Make the Lemon Buttercream
In a stand mixer fitted with the paddle attachment, beat the softened butter on medium speed until smooth and creamy, about 2 minutes. Gradually add the sifted powdered sugar, one cup at a time, beating on low after each addition.
Add the lemon juice, lemon zest, vanilla, and salt. Increase speed to medium-high and beat for 3-5 minutes until the frosting is light, fluffy, and smooth. If the frosting is too thick, add cream 1 tablespoon at a time until desired consistency is reached.
Frost the Cupcakes
Transfer the buttercream to a piping bag fitted with a large star tip. Pipe swirls onto each completely cooled cupcake.
Decorate and Serve
Garnish each cupcake with a thin slice of lemon and a sprinkle of yellow sprinkles. Add a mint leaf if desired. Serve at room temperature.
Pro-Tips for Lemon Cupcake Perfection
- Use Fresh Lemons: Fresh lemon juice and zest are essential—bottled juice lacks the bright, complex flavor.
- Room Temperature Ingredients: Cold ingredients won’t emulsify properly. Let everything warm up first.
- Don’t Overmix: Overmixing develops gluten and can make cupcakes tough. Mix just until combined.
- Fill ⅔ Full: This ensures perfectly domed tops without overflowing.
- Zest First, Then Juice: Zest the lemons before juicing—it’s much easier.
- Strain the Juice: Remove any seeds or pulp for a smooth buttercream.
- Cool Completely Before Frosting: Frosting warm cupcakes will melt the buttercream. Be patient.
- Make Ahead: Unfrosted cupcakes can be frozen for up to 3 months. Frost the day of serving.
These Perfect Lemon Cupcakes are bright, zesty, and absolutely irresistible.
