Spring Birthday Sheet Cake (Printable)

Light vanilla crumb with zesty lemon curd and fluffy cream topping, perfect for spring celebrations.

# Ingredient List:

→ 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 to 4 minutes. Add eggs one at a time, beating well after each addition. Mix in vanilla extract and lemon zest.
04 - Add the dry ingredients to the wet mixture in three alternating parts with the milk. Begin and end with the dry ingredients, mixing until just combined.
05 - Pour batter into the prepared pan and smooth the top. Bake for 28 to 32 minutes, or until a toothpick inserted into the center comes out clean. Cool completely in the pan on a rack.
06 - In a small saucepan, whisk together egg yolks, sugar, fresh lemon juice, and zest. Cook over medium-low heat, stirring constantly, until thickened, approximately 5 to 7 minutes. Remove from heat and whisk in cubed butter until smooth. Transfer to a bowl, cover surface with plastic wrap, and chill until cold.
07 - Whip chilled heavy cream, powdered sugar, and vanilla extract until stiff peaks form. Keep refrigerated until ready to use.
08 - Once the cake is cool, carefully slice it horizontally to create two layers. Remove the top layer and spread the chilled lemon curd evenly over the bottom layer. Replace the top layer.
09 - Spread whipped cream frosting evenly over the cake. Decorate with fresh berries, edible flowers, or lemon zest curls as desired.
10 - Chill assembled cake for at least 1 hour before serving to achieve clean slices.

# Expert Advice:

01 -
  • It looks stunning on the table but won't stress you out—sheet cakes are forgiving, and a serrated knife fixes almost any mistakes.
  • The bright lemon filling cuts through the sweetness in a way that makes people actually want a second slice instead of just politely taking one.
02 -
  • The lemon curd will look too thin when you first take it off the heat, but it thickens as it cools—trust the process and don't cook it longer or the eggs will scramble.
  • Room temperature eggs and milk make a difference bigger than you'd think; cold ingredients won't blend smoothly and your batter will look broken, even though it isn't.
03 -
  • A serrated knife dipped in hot water and wiped dry between slices gives you the cleanest cuts, and yes, that extra step actually matters.
  • Make the lemon curd the day before if you can—it gives the flavors time to develop, and it takes stress out of your cooking day.
Go Back