Spring Birthday Lemon Curd (Printable Version)

Tender vanilla cake layered with zesty lemon curd and light whipped cream frosting, perfect for spring gatherings.

# What You’ll Need:

→ Cake

01 - 2½ cups all-purpose flour
02 - 2½ teaspoons baking powder
03 - ½ teaspoon baking soda
04 - ½ teaspoon salt
05 - 1 cup unsalted butter, softened
06 - 2 cups granulated sugar
07 - 4 large eggs, room temperature
08 - 1 tablespoon vanilla extract
09 - 1 cup whole milk, room temperature
10 - Zest of 1 lemon

→ Lemon Curd Filling

11 - 4 large egg yolks
12 - ½ cup granulated sugar
13 - ⅓ cup fresh lemon juice
14 - Zest of 2 lemons
15 - ¼ cup unsalted butter, cubed

→ Whipped Cream Frosting

16 - 2 cups heavy cream, chilled
17 - ½ cup powdered sugar
18 - 1 teaspoon vanilla extract

→ Decoration

19 - Fresh berries such as strawberries, raspberries, or blueberries
20 - Edible flowers or lemon zest curls

# Step-by-Step Guide:

01 - Preheat oven to 350°F. Grease and line a 9x13-inch sheet pan with parchment paper.
02 - In a medium bowl, whisk together flour, baking powder, baking soda, and salt. Set aside.
03 - In a large bowl, cream softened butter and granulated sugar with an electric mixer until pale and fluffy, approximately 3-4 minutes.
04 - Add eggs one at a time, beating well after each addition. Mix in vanilla extract and lemon zest until fully combined.
05 - Add the dry ingredients to the wet mixture in three parts, alternating with milk. Begin and end with the dry ingredients. Mix until just combined.
06 - Pour batter into the prepared pan and smooth the top. Bake for 28-32 minutes, or until a toothpick inserted in the center comes out clean. Cool completely in the pan on a wire rack.
07 - While cake cools, whisk together egg yolks, sugar, lemon juice, and zest in a small saucepan. Cook over medium-low heat, stirring constantly, until thickened, approximately 5-7 minutes. Remove from heat and whisk in butter until smooth. Transfer to a bowl, cover surface with plastic wrap, and chill until cold.
08 - Whip cold heavy cream, powdered sugar, and vanilla extract until stiff peaks form. Keep refrigerated until ready to use.
09 - Once cake is cool, carefully slice it horizontally to create two layers. Remove the top layer and spread chilled lemon curd evenly over the bottom layer. Replace the top layer.
10 - Spread whipped cream frosting evenly over the assembled cake. Decorate with fresh berries, edible flowers, or lemon zest curls as desired.
11 - Chill assembled cake for at least 1 hour before serving to ensure clean slices.

# Expert Tips:

01 -
  • The homemade lemon curd is silky and tangy without being aggressively sour, and honestly, it's the moment people taste it they get quiet.
  • This cake actually gets better after a few hours of chilling, so you're not scrambling at the last minute.
  • You can make every component ahead and assemble when you're ready, which means less stress and more time with your guests.
02 -
  • The lemon curd needs constant stirring or you'll end up with scrambled eggs instead of silk—low heat is your friend here.
  • Chilling the assembled cake isn't optional; it's what makes your slices look professional and hold their shape instead of sliding around on the plate.
  • If your kitchen is very warm, the whipped cream can start to break down before you finish frosting, so work quickly or keep everything cold.
03 -
  • A serrated knife dipped in hot water and wiped dry between cuts makes slicing this cake almost meditative instead of stressful.
  • If your kitchen is warm and you're worried about the frosting melting, pipe it on in decorative peaks instead of spreading it smooth—it's more forgiving and looks intentional.
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