Simple Graduation Sheet Cake (Print Version)

Moist vanilla sheet cake with creamy buttercream and colorful 2026 piping, perfect for celebrations.

# What You Need:

→ Cake

01 - 2½ cups all-purpose flour
02 - 2½ teaspoons baking powder
03 - ½ teaspoon salt
04 - 1 cup unsalted butter, softened
05 - 1¾ cups granulated sugar
06 - 4 large eggs, room temperature
07 - 1 tablespoon vanilla extract
08 - 1 cup whole milk, room temperature

→ Buttercream Frosting

09 - 1 cup unsalted butter, softened
10 - 4 cups powdered sugar, sifted
11 - ¼ cup whole milk
12 - 2 teaspoons vanilla extract
13 - Pinch of salt
14 - Food coloring for school colors

→ Decoration

15 - Food coloring for piping
16 - Sprinkles or edible decorations as desired

# Directions:

01 - Preheat oven to 350°F. Grease a 9x13-inch sheet 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 together until light and fluffy, approximately 3 minutes.
04 - Add eggs one at a time, beating well after each addition. Mix in vanilla extract until combined.
05 - Gradually add flour mixture in three parts, alternating with milk, beginning and ending with flour. Mix until just combined.
06 - Pour batter into prepared pan and smooth the top surface evenly.
07 - Bake for 30 to 35 minutes, or until a toothpick inserted into the center comes out clean. Cool completely in the pan on a wire rack.
08 - Beat softened butter until creamy. Gradually add powdered sugar, milk, vanilla, and salt. Beat for 3 to 5 minutes until fluffy. Divide and tint portions with food coloring as desired.
09 - Spread an even layer of buttercream over the cooled cake.
10 - Transfer colored buttercream to a piping bag fitted with a small round tip. Pipe Class of 2026 on top of frosted cake. Add sprinkles or edible decorations as desired.

# Expert Suggestions:

01 -
  • One sheet pan means less cleanup and more time celebrating instead of scrubbing dishes.
  • The vanilla base is a blank canvas—swap in almond extract or lemon zest if you're feeling adventurous.
  • Creamy buttercream pipes like a dream, giving you that bakery-quality look without the bakery price tag.
02 -
  • Room temperature ingredients are non-negotiable—cold eggs and milk won't blend smoothly, and your frosting will end up grainy if the butter isn't soft enough to beat.
  • Don't over-mix the batter once you add flour, or you'll develop gluten and end up with a dense, tough cake instead of something tender and cloud-like.
03 -
  • Invest in a small piping bag and round tip if you don't have one—they're under ten dollars and transform frosting into something that looks intentional and celebratory.
  • Let your softened butter and eggs sit out for a full hour before baking; this single step makes your frosting fluffier and your cake more tender than you'd expect.
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