Spring Birthday Cake Pastel (Printable Version)

Tender vanilla cake with creamy pastel buttercream and soft floral decorations, perfect for spring celebrations.

# What You'll Need:

→ Cake

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

→ Buttercream

09 - 1½ cups unsalted butter, room temperature
10 - 6 cups powdered sugar, sifted
11 - ¼ cup whole milk
12 - 2 teaspoons pure vanilla extract
13 - Pinch of salt
14 - Gel food coloring: pink, yellow, lavender, green, blue as desired

→ Decoration

15 - Edible flower petals, optional
16 - Sprinkles, optional

# Directions:

01 - Preheat oven to 350°F. Grease and line three 8-inch round cake pans with parchment paper.
02 - In a medium bowl, whisk together flour, baking powder, and salt.
03 - In a large bowl, beat butter and sugar on medium-high speed until light and fluffy, approximately 3–4 minutes.
04 - Add eggs one at a time, beating well after each addition. Mix in vanilla extract.
05 - Alternately add flour mixture and milk to butter mixture, beginning and ending with flour. Mix until just combined without overmixing.
06 - Divide batter evenly among prepared pans and smooth the tops.
07 - Bake for 25–30 minutes until a toothpick inserted in the center emerges clean.
08 - Let cakes cool in pans for 10 minutes, then transfer to a wire rack to cool completely.
09 - In a large bowl, beat butter until creamy. Gradually add powdered sugar, milk, vanilla, and salt. Beat until fluffy and smooth, approximately 3–4 minutes.
10 - Divide buttercream into separate bowls and tint each with desired pastel gel food coloring.
11 - Place one cake layer on a serving plate, spread buttercream on top, and repeat with remaining layers.
12 - Apply a thin crumb coat of buttercream over the entire cake and chill for 20 minutes.
13 - Decorate cake with pastel buttercreams using piping bags fitted with assorted tips to create floral designs. Garnish with edible petals or sprinkles if desired.
14 - Chill for 15–20 minutes before serving to set the buttercream.

# Expert Advice:

01 -
  • The cake itself is tender and actually stays moist—no dry disappointments here.
  • Pastel buttercream is more forgiving than you'd think, and the decorating becomes a meditative, creative escape.
  • It's impressive enough to make people think you spent hours, but the actual work is spread across manageable steps.
02 -
  • Do not overmix the batter once you add the flour—the second you don't see streaks of flour, you're done, even if it feels like you haven't mixed enough; the rest will come together as the cake bakes.
  • Room temperature ingredients aren't a suggestion; cold butter won't incorporate properly, and cold eggs will separate into a grainy mess instead of emulsifying smoothly into the batter.
  • If your buttercream looks broken or grainy after adding the powdered sugar, don't panic—add a splash more milk and keep beating until it smooths out, or gently warm the bowl over a pot of warm water while beating.
03 -
  • If you want to level your cake layers for a more professional look, use a serrated knife or a cake leveler, measuring twice to keep them even—this takes two minutes but makes the whole cake stack more stable.
  • Invest in a turntable if you're going to pipe a lot of flowers; it lets you work all the way around without reaching awkwardly, and your designs come out more confident and consistent.
  • Keep your piping bag warm by running it under warm water before filling it with buttercream—the slight warmth makes the frosting pipe more smoothly and the flowers look less stiff.
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