High School Graduation Sheet Cake

Featured in: Simple Sweet Moments

This festive sheet cake celebrates graduation with a moist vanilla base and rich buttercream frosting, adorned with colorful Class of 2026 piping. Ideal for large gatherings, the cake is easy to prepare and decorate using basic baking tools. Vibrant food coloring and sprinkles let you customize for school spirit, while the buttery frosting adds creamy sweetness. With tips for chocolate variation and easy storage, this cake serves 24 guests and pairs nicely with lemonade or punch. Allergen info included. Enjoy a memorable dessert centerpiece for your special graduation event!

Updated on Sun, 29 Mar 2026 16:11:45 GMT
Festive vanilla sheet cake decorated with creamy buttercream and Class of 2026 piping for graduation celebrations.  Save
Festive vanilla sheet cake decorated with creamy buttercream and Class of 2026 piping for graduation celebrations. | maisonflavors.com

Ingredients

  • Sift before measuring for a fluffier cake& and don’t skip this step or the crumb can get dense.
  • Double check its freshness so your cake rises evenly under all that celebratory piping.
  • Room temperature butter is key for a smooth batter—leaving it out while you prep avoids lumps.
  • Proper creaming with butter makes the cake light& so take your time mixing.
  • Bring them to room temp along with the other wet ingredients—cold eggs can split your batter.
  • This gives the sheet cake its classic, rich aroma that fills the kitchen as it bakes.
  • Alternating this with the dry ingredients creates an extra soft crumb.
  • Sift for super-smooth buttercream& you’ll thank yourself when piping those fine details.
  • Gel coloring gives bold hues without making the frosting runny—school colors pop.
  • These bring out the fun& just sprinkle them after piping so icing stays neat.

Instructions

Moist vanilla sheet cake with vibrant buttercream frosting, featuring Class of 2026 piped in school colors for a festive touch.  Save
Moist vanilla sheet cake with vibrant buttercream frosting, featuring Class of 2026 piped in school colors for a festive touch. | maisonflavors.com

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How to Personalize Your Graduation Cake

Serving and Storage Suggestions

Troubleshooting Common Sheet Cake Woes

Classic vanilla sheet cake topped with smooth buttercream and Class of 2026 piping, perfect for graduation party dessert tables. Save
Classic vanilla sheet cake topped with smooth buttercream and Class of 2026 piping, perfect for graduation party dessert tables. | maisonflavors.com

Questions & Answers for Recipes

Can I make the sheet cake ahead?

Yes, the cake can be baked a day in advance. Keep covered and refrigerate to maintain freshness.

How do I achieve vibrant colors in the buttercream?

Use gel food coloring for bold hues without thinning the frosting’s texture.

What tools are necessary for decoration?

You’ll need piping bags, writing and star tips, an offset spatula, and a 13x18-inch sheet pan for best results.

Can the vanilla cake be turned into chocolate?

Absolutely. Substitute ½ cup of flour with unsweetened cocoa powder for a chocolate version.

How long can leftovers be stored?

Store covered in the refrigerator for up to 4 days. Serve cold or bring to room temperature before enjoying.

Is this cake suitable for vegetarians?

Yes, it is vegetarian-friendly. Always check decorations and food coloring for added ingredients.

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High School Graduation Sheet Cake

Delightful vanilla sheet cake with buttercream, decorated for Class of 2026 celebrations. Perfect for graduation gatherings.

Prep Time
30 mins
Time for Cooking
35 mins
Overall Time Needed
65 mins
Created by Lindsey Brooks


Skill Level Medium

Cuisine American

Servings Produced 24 Portions

Diet Preferences Meat-Free

What You'll Need

Sheet Cake

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

Buttercream Frosting

01 1 1/2 cups unsalted butter, room temperature
02 6 cups powdered sugar, sifted
03 2 teaspoons vanilla extract
04 4–6 tablespoons milk or heavy cream
05 Food coloring as desired

Decoration

01 Sprinkles, edible glitter, or colored sugar (optional)

Directions

Step 01

Prepare Sheet Pan: Preheat oven to 350°F. Grease and line a 13x18-inch sheet pan with parchment paper.

Step 02

Combine Dry Ingredients: Whisk together all-purpose flour, baking powder, and salt in a medium bowl.

Step 03

Cream Butter and Sugar: Beat unsalted butter and granulated sugar until light and fluffy, approximately 3 to 4 minutes.

Step 04

Add Eggs and Vanilla: Mix in eggs one at a time, beating well after each addition. Stir in vanilla extract.

Step 05

Incorporate Dry and Wet: Add dry mixture to wet ingredients in three parts, alternating with milk. Begin and end with dry ingredients. Mix until just combined.

Step 06

Fill Sheet Pan: Pour batter into prepared sheet pan and smooth the surface with an offset spatula.

Step 07

Bake Cake: Bake for 30 to 35 minutes, or until a toothpick inserted in the center emerges clean.

Step 08

Cool Sheet Cake: Cool cake completely in the pan on a wire rack before frosting.

Step 09

Prepare Buttercream: Beat butter on medium speed until creamy. Gradually add powdered sugar, mixing well. Add vanilla and milk or cream until desired consistency is reached.

Step 10

Tint Buttercream: Divide frosting and color portions for base, borders, and piping as needed.

Step 11

Frost and Decorate: Spread base layer of buttercream onto cooled cake. Pipe borders and 'Class of 2026' with piping bags fitted with round and star tips. Add sprinkles or edible decorations as desired.

Step 12

Chill Before Serving: Refrigerate sheet cake for 30 minutes to set the frosting before slicing and serving.

Equipment Needed

  • 13x18-inch sheet pan
  • Parchment paper
  • Electric mixer
  • Mixing bowls
  • Measuring cups and spoons
  • Offset spatula
  • Piping bags and tips
  • Wire rack

Allergy Info

Please check every ingredient for allergens and reach out to a healthcare pro if unsure.
  • Contains wheat (gluten), eggs, and milk (dairy). Verify food coloring and decorations for hidden allergens.

Nutrition Details (each serving)

These numbers are estimates for reference and not a replacement for health advice.
  • Energy: 410
  • Fats: 18 g
  • Carbohydrates: 60 g
  • Proteins: 3 g

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