Spring Birthday Cake Pastel Floral (Printable Version)

Tender vanilla cake layered with creamy pastel floral buttercream in soft, spring-inspired colors.

# 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

→ Decoration

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

# How to Make It:

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 together on medium-high speed until light and fluffy, approximately 3 to 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; avoid overmixing.
06 - Divide batter evenly among prepared pans. Smooth the tops.
07 - Bake for 25 to 30 minutes, or until a toothpick inserted in the center comes out 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 to 4 minutes.
10 - Divide buttercream into separate bowls. Tint each with desired pastel gel food coloring.
11 - Place one cake layer on a serving plate. Spread a layer of buttercream on top. Repeat with remaining layers.
12 - Apply a thin crumb coat of buttercream over the entire cake. 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 to 20 minutes before serving to set buttercream.

# Expert Advice:

01 -
  • The vanilla cake stays tender and moist because you're respecting the alternating wet and dry ingredients—no rubber cake disasters here.
  • Pastel buttercream feels like edible watercolors; you can create whatever mood matches your moment without needing fancy skills.
  • Three-layer cakes look impressive sitting on a table, but this method breaks it into manageable steps that actually make sense.
02 -
  • Overmixing the batter after you've added flour creates tough, dense cake because you're developing gluten when you should be leaving it tender—mix until streaks disappear and stop immediately.
  • Room temperature ingredients aren't a suggestion; cold eggs and butter won't emulsify properly and your cake will be gritty and separated instead of smooth and moist.
  • Powdered sugar must be sifted or your frosting will taste grainy and feel rough on your tongue no matter how long you beat it.
03 -
  • If you only have two cake pans, bake the third layer after the first two cool—clean the pans, let them cool slightly, then bake again; your kitchen will smell amazing and the layers will still stack beautifully.
  • Pastel buttercream is about restraint: add gel coloring one tiny drop at a time and mix thoroughly before adding more, because that drop goes further than you expect and suddenly you have bubblegum pink instead of soft blush.
  • Chill the crumb coat layer for longer if you're not confident about your piping—a really solid foundation makes everything that comes next feel easier and look better.
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