Spring Birthday Sheet Cake (Printable)

Tender vanilla crumb layered with lemon curd and topped with whipped cream frosting for springtime enjoyment.

# What You 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

# Directions:

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.
03 - In a large bowl, cream softened butter and sugar with an electric mixer until pale and fluffy, approximately 3-4 minutes.
04 - Add eggs one at a time to the butter mixture, beating well after each addition. Mix in vanilla extract and lemon zest until combined.
05 - Add dry ingredients to the wet mixture in three parts, alternating with milk. Begin and end with dry ingredients, mixing until just combined.
06 - Pour batter into 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 cooling rack.
07 - In a small saucepan, whisk together egg yolks, sugar, lemon juice, and zest. Cook over medium-low heat, stirring constantly, until thickened, approximately 5-7 minutes. Remove from heat and whisk in butter cubes 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 completely cool, carefully slice 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 cake. Decorate with fresh berries, edible flowers, or lemon zest curls as desired.
11 - Chill the assembled cake for at least 1 hour before serving to ensure clean slices.

# Expert Hints:

01 -
  • Combines moist vanilla cake with a tangy, homemade lemon curd for a perfect balance of flavors.
  • Whipped cream frosting makes the cake light and creamy, ideal for springtime treats.
  • Easy to decorate with fresh berries and edible flowers for a festive presentation.
02 -
  • Make sure all ingredients are at room temperature for smooth batter and better rise.
  • Whisk the lemon curd continuously to avoid curdling and achieve a silky texture.
  • Chill the lemon curd thoroughly to prevent it from mixing into the whipped cream frosting.
  • Use an offset spatula for even frosting and smooth finish.
  • Decorate just before serving to keep berries fresh and vibrant.
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