Simple First Communion Sheet (Print Version)

Moist vanilla sheet cake with smooth buttercream and delicate piped floral decoration, perfect for festive occasions.

# Ingredient List:

→ Sheet Cake

01 - 2½ cups all-purpose flour
02 - 2½ 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

09 - 1½ cups unsalted butter, softened
10 - 6 cups powdered sugar, sifted
11 - ¼ cup whole milk
12 - 2 teaspoons pure vanilla extract
13 - Food coloring as desired

# Recipe Steps:

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 alternating additions with milk, beginning and ending with flour. Mix until just combined without overmixing.
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 extract.
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.
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.
13 - Optionally, pipe a cross or add First Communion text with a small round tip.

# Expert Suggestions:

01 -
  • The batter comes together so quickly that you'll have it in the pan before you finish your coffee.
  • Buttercream piping is genuinely easier than it looks, and mistakes just add to the homemade charm.
  • You can bake this a full day ahead, which means stress-free decorating on the actual celebration morning.
  • One pan means minimal cleanup while everyone's admiring the flowers you just piped.
02 -
  • Room temperature ingredients really do make a difference—cold eggs or milk will create a broken-looking batter that won't incorporate smoothly, so plan ahead.
  • Don't skip the sifting of powdered sugar; I learned this the hard way when my buttercream had little gritty lumps that looked unprofessional until I started sifting.
  • Gel food coloring is worth the extra dollar or two because liquid coloring will make your buttercream too thin and runny to pipe successfully.
03 -
  • Keep your piping bag warm by wrapping it gently in a warm, damp towel between flowers; warm buttercream pipes more smoothly and creates softer, more natural-looking flowers.
  • If your buttercream gets too soft while you're working, pop the piping bag in the refrigerator for five minutes to firm it back up.
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