Class of 2026 Vanilla Cake (Printable Version)

A fluffy vanilla sheet cake with creamy buttercream and festive toppings, ideal for celebratory gatherings.

# What You'll Need:

→ For the 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

→ For the 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

→ For Decoration

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

# Step-by-Step 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 ingredients 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 the batter into the prepared pan and spread evenly.
07 - Bake for 28 to 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, milk, and salt. Beat on high for 2 to 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 Advice:

01 -
  • It feeds a crowd without demanding hours in the kitchen, leaving you time to actually enjoy the party instead of being stuck frosting.
  • The vanilla buttercream is genuinely silky and not cloyingly sweet, tasting like actual butter instead of sugar pretending to be cake frosting.
  • Sheet cakes are forgiving—no fancy pans, no worrying about layers sliding around, just straightforward baking that builds confidence.
02 -
  • Room temperature ingredients are non-negotiable for a smooth batter—I learned this the hard way when a hastily gathered cake came out with an odd texture, and every ingredient that was cold had created tiny pockets of density.
  • Mixing until just combined is genuinely the secret to a tender cake—overmixing develops gluten and makes the crumb tough, and it's easier to undermix and have a few flour streaks than to ruin the whole cake by being thorough.
  • The difference between a good buttercream and a gritty one is sifting the powdered sugar and beating it long enough—rushing this step will disappoint you in every bite.
03 -
  • If you need to feed more than twenty-four people, this recipe doubles beautifully in a standard full-sheet pan—the baking time stays about the same, just check it a minute or two earlier.
  • Invest in an offset spatula for frosting, because it makes the difference between a cake that looks homemade and a cake that looks deliberately casual in a good way.
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