Simple Vanilla Sheet Cake (Printable)

Moist vanilla sheet topped with creamy buttercream and piped floral decorations.

# What You'll Need:

→ Sheet Cake

01 - 2 1/2 cups all-purpose flour
02 - 2 1/2 teaspoons baking powder
03 - 1/2 teaspoon salt
04 - 1 cup unsalted butter, softened
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 - 1 1/2 cups unsalted butter, softened
10 - 6 cups powdered sugar, sifted
11 - 1/4 cup whole milk
12 - 2 teaspoons pure vanilla extract
13 - Food coloring (pink, yellow, green, or as desired)

# How to Make It:

01 - Preheat oven to 350°F. Grease a 9x13-inch baking pan and line with parchment paper.
02 - In a medium bowl, whisk together flour, baking powder, and salt.
03 - In a large bowl, beat butter and sugar with an electric mixer until light and fluffy, approximately 3 minutes.
04 - Add eggs one at a time, mixing well after each addition. Mix in vanilla extract.
05 - Add flour mixture in three parts, alternating with milk, beginning and ending with flour. Mix until just combined; do not overmix.
06 - Pour batter into prepared pan and smooth the top with a spatula.
07 - Bake for 28 to 32 minutes, or until a toothpick inserted in the center comes out clean.
08 - Let cake cool in pan for 10 minutes, then turn out onto a wire rack to cool completely.
09 - Beat butter until creamy. Gradually add powdered sugar, alternating with milk, beating until smooth and fluffy. Mix in vanilla.
10 - Divide buttercream into bowls and tint portions with food coloring for flowers and leaves.
11 - Spread a generous layer of plain buttercream over cooled cake as the foundation.
12 - Fill piping bags fitted with flower and leaf tips with colored buttercream. Pipe flowers and leaves decoratively across the cake, focusing on corners or along the edges for a classic presentation.
13 - Optionally, pipe a cross or add First Communion text with a small round tip.

# Expert Advice:

01 -
  • The cake stays incredibly moist and tender without being heavy, making it feel special without intimidating you.
  • Buttercream flowers look impressive but don't require years of practice—honest piping with patience is enough.
  • It serves a crowd beautifully, which means you can celebrate with confidence whether it's for a big family moment or a smaller gathering.
02 -
  • Room temperature is non-negotiable for eggs and milk—cold ingredients won't incorporate properly and you'll end up with a bumpy, broken-looking batter.
  • The alternating flour-and-milk technique keeps gluten from overdeveloping, which is why the cake stays tender and doesn't turn tough or rubbery.
  • Buttercream temperature matters for piping—if it's too soft the flowers collapse, and if it's too stiff they won't flow; slightly cooler than room temperature is the sweet spot.
  • Gel food coloring is worth seeking out because it doesn't add water to your buttercream the way liquid coloring does, keeping the consistency perfect for piping.
03 -
  • Sift your powdered sugar even if it looks fine—unseen lumps become gritty buttercream that tears as you pipe, turning beautiful flowers into frustration.
  • Invest in a few quality piping tips; even basic rose and leaf tips make a visible difference in how professional your flowers look with minimal extra effort.
  • If piping feels intimidating, remember that rustic, imperfect flowers actually photograph better and feel more homemade and genuine than perfect ones.
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