Simple First Communion Cake (Printable Version)

Moist vanilla sheet cake with creamy buttercream and delicate floral decorations, perfect for celebrations.

# What You Need:

→ Sheet Cake

01 - 2 ½ cups all-purpose flour
02 - 2 ½ teaspoons baking powder
03 - ½ 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 Frosting

09 - 1 ½ cups unsalted butter, softened
10 - 6 cups powdered sugar, sifted
11 - ¼ cup whole milk
12 - 2 teaspoons pure vanilla extract
13 - Food coloring (pink, yellow, green, or as desired)

# How To Make:

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 until evenly distributed.
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 until fully combined.
05 - Add flour mixture in three parts, alternating with milk, beginning and ending with flour. Mix until just combined; avoid overmixing.
06 - Pour batter into prepared pan and smooth the top with a spatula for even baking.
07 - Bake for 28–32 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 to room temperature.
09 - Beat softened butter until creamy. Gradually add powdered sugar, alternating with milk, beating until smooth and fluffy. Mix in vanilla extract.
10 - Divide buttercream into separate bowls and tint portions with food coloring for flowers and leaves.
11 - Spread a generous layer of plain buttercream over the cooled cake as the base layer.
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 using a small round piping tip.

# Expert Tips:

01 -
  • The cake stays impossibly moist and tender, even a day later when you cut into it at the party.
  • Decorating with piped flowers feels fancy but doesn't require years of cake decorating school—just patience and a steady hand.
  • It feeds a crowd without requiring you to juggle multiple cake layers or worry about stacking.
02 -
  • Never skip cooling the cake completely before frosting—warm cake will melt the buttercream and create a sliding, messy situation.
  • Piping bags fitted with small flower tips (like a #1 or #81) create delicate blooms that look professional; practice on parchment paper first if you're nervous.
03 -
  • Sift powdered sugar twice if your buttercream still feels grainy—those tiny lumps will clog your piping bag.
  • Keep your piping bag at a 45-degree angle to the cake and use steady, even pressure; shaky hands make wobbly flowers, so breathe and trust yourself.
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