Graduation Sheet Cake Buttercream Roses

Featured in: Breads & Sweet Treats

This festive sheet cake becomes the centerpiece of any graduation party with its soft, tender crumb and rich buttercream frosting. Smooth layers of creamy buttercream provide the perfect canvas for piping elaborate roses and vibrant green leaves, while a handmade fondant diploma adds a celebratory touch. Personalize using school colors, add edible pearls for flair, and enjoy the cake’s delightful balance of sweetness and buttery texture. Serve generous squares to a crowd, and savor the combination of artful decoration and classic flavors with every slice.

Updated on Thu, 26 Mar 2026 05:55:41 GMT
Festive graduation sheet cake with buttercream roses and edible diploma, perfect for celebrating achievements. Pin It
Festive graduation sheet cake with buttercream roses and edible diploma, perfect for celebrating achievements. | orbitcuisine.com

Celebrate your graduate's hard-earned success with this stunning and festive sheet cake. This crowd-pleasing dessert is as impressive as it is delicious, featuring a moist vanilla base topped with a garden of buttercream roses and a symbolic edible diploma. Perfect for large gatherings, this cake serves 24 people and acts as a beautiful centerpiece for any commencement party.

Festive graduation sheet cake with buttercream roses and edible diploma, perfect for celebrating achievements. Pin It
Festive graduation sheet cake with buttercream roses and edible diploma, perfect for celebrating achievements. | orbitcuisine.com

This American-style sheet cake strikes the perfect balance between simple preparation and elegant presentation. By using a 12x18-inch pan, you ensure there is plenty of cake for friends and family to enjoy while providing a wide canvas for your buttercream artistry. Whether you are a seasoned baker or a beginner, the step-by-step decorating guide will help you create a masterpiece that honors the graduate in style.

Ingredients

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Cake

  • 3 cups (375 g) all-purpose flour
  • 2 ½ cups (500 g) granulated sugar
  • 1 cup (225 g) unsalted butter, softened
  • 1 cup (240 ml) whole milk, room temperature
  • 6 large eggs, room temperature
  • 1 tablespoon vanilla extract
  • 2 ½ teaspoons baking powder
  • ½ teaspoon salt

Buttercream Frosting

  • 2 cups (450 g) unsalted butter, softened
  • 8 cups (1 kg) powdered sugar, sifted
  • ½ cup (120 ml) whole milk or heavy cream
  • 2 teaspoons vanilla extract
  • Food coloring (gel preferred), as needed for roses, leaves, and diploma

Decorations

  • Edible gold or silver pearls (optional, for accents)
  • Fondant or white chocolate for diploma and ribbon (optional)

Instructions

Step 1
Preheat the oven to 350°F (175°C). Grease and line a 12x18-inch sheet cake pan with parchment paper.
Step 2
In a large bowl, beat butter and sugar until light and fluffy, about 3 minutes.
Step 3
Add eggs one at a time, mixing well after each addition. Stir in vanilla extract.
Step 4
In a separate bowl, whisk together flour, baking powder, and salt.
Step 5
Add flour mixture to the butter mixture in three additions, alternating with milk. Begin and end with the flour mixture. Mix until just combined.
Step 6
Pour batter into the prepared pan and smooth the top.
Step 7
Bake for 28–32 minutes, or until a toothpick inserted in the center comes out clean.
Step 8
Cool in the pan for 10 minutes, then turn out onto a wire rack to cool completely.
Step 9
For the frosting, beat butter until creamy. Gradually add powdered sugar, vanilla, and milk, mixing until fluffy. Adjust consistency with more milk or sugar as needed.
Step 10
Divide buttercream into bowls for coloring. Tint portions pink, red, or yellow for roses, green for leaves, and leave some white for the main cake coating.
Step 11
Frost the cooled cake with a smooth layer of white buttercream.
Step 12
Using a piping bag fitted with a rose tip, pipe buttercream roses in desired colors. Pipe green leaves with a leaf tip.
Step 13
For the diploma, shape a small piece of fondant or white chocolate into a scroll, tie with a ribbon of colored fondant, and place on the cake.
Step 14
Add edible pearls and any additional accents as desired.

Zusatztipps für die Zubereitung

Ensure your eggs and milk are at room temperature to prevent the batter from curdling. Use gel food coloring rather than liquid drops; gel provides vibrant, concentrated hues without thinning out your buttercream frosting, which is essential for maintaining the shape of your roses and leaves.

Varianten und Anpassungen

To transform this into a chocolate cake, simply substitute ¾ cup (75 g) of the all-purpose flour with unsweetened cocoa powder. For a more personalized look, swap the rose colors for the graduate's specific school colors to create a truly bespoke celebration dessert.

Serviervorschläge

Display the cake on a large decorative board or a flat silver platter to emphasize its scale. For a complete dessert spread, serve each slice with a scoop of premium vanilla bean ice cream or a handful of fresh seasonal berries to cut through the rich sweetness of the buttercream.

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| orbitcuisine.com

With its elegant floral decorations and thoughtful details, this Graduation Sheet Cake is more than just a dessert—it is a celebration of hard work and new beginnings. Slice it up, share it with loved ones, and enjoy the sweet taste of success!

Recipe Q&A

How do I achieve vibrant rose colors?

Use gel food coloring for deep, vibrant hues. Gel formulas provide intense color without thinning the buttercream, ideal for piping detailed roses and leaves.

Can I make the cake in advance?

Yes, bake the cake a day ahead and wrap tightly once cooled. Prepare buttercream and decorate on the day of serving for best freshness.

What can I use for the edible diploma?

Shape fondant or melted white chocolate into a scroll and tie with a ribbon of colored fondant for a decorative, edible diploma accent.

How do I keep the cake moist?

Avoid overbaking and cool the cake completely before adding frosting. Store covered to prevent drying out before serving.

Can I personalize with school colors?

Yes! Tint buttercream and fondant accents in any color combination to represent your school or graduate’s preferences.

Is there a way to make it chocolate flavored?

Substitute 3/4 cup of the flour with unsweetened cocoa powder to transform the cake into a chocolate version.

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Graduation Sheet Cake Buttercream Roses

Festive sheet cake topped with buttercream roses and edible diploma—ideal centerpiece for any graduation celebration.

Prep Time
40 mins
Cook Time
30 mins
Time Needed
70 mins
Created by Benjamin Ward


Skill Level Medium

Cuisine American

Portions 24 Makes

Diet Info Meat-Free

What You Need

Cake

01 3 cups all-purpose flour
02 2 1/2 cups granulated sugar
03 1 cup unsalted butter, softened
04 1 cup whole milk, room temperature
05 6 large eggs, room temperature
06 1 tablespoon vanilla extract
07 2 1/2 teaspoons baking powder
08 1/2 teaspoon salt

Buttercream Frosting

01 2 cups unsalted butter, softened
02 8 cups powdered sugar, sifted
03 1/2 cup whole milk or heavy cream
04 2 teaspoons vanilla extract
05 Gel food coloring, as needed for roses, leaves, and diploma

Decorations

01 Edible gold or silver pearls (optional, for accents)
02 Fondant or white chocolate for diploma and ribbon (optional)

Steps

Step 01

Prepare the Pan: Preheat oven to 350°F. Grease and line a 12x18-inch sheet cake pan with parchment paper.

Step 02

Cream Butter and Sugar: In a large bowl, beat unsalted butter and granulated sugar using an electric mixer until light and fluffy, approximately 3 minutes.

Step 03

Add Eggs and Vanilla: Add eggs one at a time, blending well after each addition. Stir in vanilla extract until evenly combined.

Step 04

Combine Dry Ingredients: In a separate bowl, whisk together all-purpose flour, baking powder, and salt.

Step 05

Incorporate Dry and Wet Ingredients: Add the flour mixture to the creamed mixture in three additions, alternating with whole milk. Begin and finish with the flour mixture. Mix until just incorporated.

Step 06

Fill and Bake: Pour batter into the prepared pan and smooth the top evenly. Bake for 28 to 32 minutes, or until a toothpick inserted into the center emerges clean.

Step 07

Cooling the Cake: Cool the cake in the pan for 10 minutes, then remove to a wire rack to cool completely.

Step 08

Prepare Buttercream Frosting: Beat unsalted butter until creamy. Gradually add powdered sugar, vanilla extract, and milk, whipping until light and fluffy. Adjust consistency as needed by adding more milk or sugar.

Step 09

Tint and Divide Frosting: Divide buttercream into separate bowls. Tint portions pink, red, or yellow for roses, green for leaves, and leave some white for coating.

Step 10

Frost the Cake: Evenly coat the cooled cake with a smooth layer of white buttercream using an offset spatula.

Step 11

Pipe Decorative Elements: Using piping bags and appropriate tips, pipe buttercream roses in chosen colors and green leaves onto the cake.

Step 12

Create and Place Diploma Decoration: Shape a scroll using fondant or white chocolate, tie with a colored fondant ribbon, and position on cake.

Step 13

Add Edible Accents: Sprinkle edible pearls and any additional decorative elements as desired to finish.

Tools You'll Need

  • 12x18-inch sheet cake pan
  • Electric mixer
  • Mixing bowls
  • Parchment paper
  • Cooling rack
  • Offset spatula
  • Piping bags
  • Piping tips (rose, leaf, round)
  • Fondant tools (optional)

Allergen Details

Review the ingredients list for potential allergens and reach out to a healthcare professional with any concerns.
  • Contains wheat (gluten), eggs, and milk (dairy). Check decorations and coloring for additional allergens. Always verify all labels for final safety.

Nutrition Breakdown (per serving)

Details are for guidance only and shouldn’t replace advice from your doctor.
  • Calories: 430
  • Fats: 20 g
  • Carbohydrates: 59 g
  • Proteins: 4 g

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