Class of 2026 Vanilla Cake (Print Version)

A fluffy vanilla sheet cake with smooth buttercream and festive decorations for special celebrations.

# What You Need:

→ Cake

01 - 3 cups all-purpose flour
02 - 2½ teaspoons baking powder
03 - ½ teaspoon baking soda
04 - ½ teaspoon salt
05 - 1 cup unsalted butter, room temperature
06 - 2 cups granulated sugar
07 - 4 large eggs, room temperature
08 - 1 tablespoon vanilla extract
09 - 1½ cups whole milk, room temperature

→ Vanilla Buttercream

10 - 1 cup unsalted butter, room temperature
11 - 4 cups powdered sugar, sifted
12 - 2 teaspoons vanilla extract
13 - ¼ cup whole milk, room temperature
14 - Pinch of salt

→ Decoration

15 - Graduation-themed sprinkles or edible decorations
16 - Gel food coloring, optional for school colors

# Directions:

01 - Preheat oven to 350°F. Grease and line a 12x18-inch half-sheet baking pan with parchment paper.
02 - In a medium bowl, whisk together flour, baking powder, baking soda, and salt. Set aside.
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.
05 - Add half the dry ingredient mixture to the wet mixture and mix on low speed. Pour in half the milk and mix gently. Repeat with remaining dry ingredients and milk, mixing just until combined.
06 - Pour batter into the prepared pan and spread evenly.
07 - Bake for 28–32 minutes, or until a toothpick inserted in the center comes out clean.
08 - Let the cake cool completely in the pan on a wire rack.
09 - Beat butter until creamy, approximately 2 minutes. Gradually add powdered sugar, mixing on low speed. Add vanilla extract, milk, and salt. Beat on high for 2–3 minutes until fluffy. Add food coloring if desired.
10 - Spread buttercream evenly over the cooled cake. Decorate with graduation-themed sprinkles or edible decorations.
11 - Slice and serve.

# Expert Tips:

01 -
  • It feeds 24 people, which means you're covered for any size gathering without needing multiple batches.
  • The vanilla buttercream is silky and forgiving—it's nearly impossible to mess up even if you're new to frosting.
  • One pan, minimal dishes, and it's done in under two hours from start to serve.
02 -
  • Room temperature ingredients are not a suggestion—they're the difference between a fluffy cake and a dense hockey puck, and I learned this the hard way.
  • Don't overmix the batter once you add the dry ingredients; every extra stir develops gluten and toughens the crumb.
03 -
  • If your buttercream looks grainy or separated, it's usually because the butter was cold—just keep beating it and it'll come back together smoothly.
  • Invest in an offset spatula for frosting; it makes spreading look effortless and professional.
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