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pastel frosted sheet cake with soft vanilla base and smooth pink blue yellow buttercream layers

Simple Graduation Sheet Cake

Emma F., smiling female cake chef wearing a pastel pink apron in a cozy kitchenEmma F.
Celebrate your graduate's big day with a simple sheet cake that's both easy to make and stunning to look at. Customize it with school colors and personal messages for a memorable finish.
Prep Time 30 minutes
Cook Time 35 minutes
Total Time 1 hour 5 minutes
Course Dessert
Cuisine American
Servings 16 slices
Calories 320 kcal

Equipment

  • 1 sheet pan greased and floured
  • 1 electric mixer
  • 1 large mixing bowl

Ingredients
  

Cake

  • 2 cups all-purpose flour
  • 1 1/2 cups granulated sugar
  • 1/2 cup unsalted butter softened
  • 1 cup milk
  • 2 large eggs
  • 1 tablespoon vanilla extract
  • 1 tablespoon baking powder
  • 1/2 teaspoon salt

Frosting

  • 1 cup unsalted butter softened
  • 4 cups powdered sugar
  • 1/4 cup milk
  • 2 teaspoons vanilla extract

Instructions
 

Preparation

  • Preheat your oven to 350°F. Grease and flour a sheet pan to prevent the cake from sticking.
  • In a large bowl, whisk together the flour, baking powder, and salt until well combined.
  • Using an electric mixer, cream the butter and sugar together until light and fluffy, about 3 minutes.
  • Beat in the eggs, one at a time, then add the vanilla extract. Gradually add the dry ingredients alternately with the milk, mixing until just combined.
  • Pour the batter into the prepared sheet pan, spreading it evenly with a spatula.
  • Bake in the preheated oven for 25-30 minutes, or until a toothpick inserted into the center comes out clean.

Cooling and Frosting

  • Allow the cake to cool in the pan for 10 minutes before transferring it to a wire rack to cool completely.
  • In a mixing bowl, beat the softened butter until creamy. Gradually add the powdered sugar, milk, and vanilla extract, beating until smooth.
  • Once the cake is completely cool, spread the frosting evenly over the top and sides of the cake.

Serving and Storage

  • Cut the cake into slices and serve on a decorative platter. Optionally, garnish with fresh berries or edible flowers for added flair.
  • Store any leftover cake in an airtight container at room temperature for up to three days, or refrigerate for up to a week.

Notes

Pro Tips: Ensure your cake is completely cool before frosting to avoid melting. Ingredient Substitutions: Use almond milk for a dairy-free option. How to Serve: Serve with a scoop of vanilla ice cream. Storage & Freshness: Store in an airtight container. Make-Ahead Tips: Bake the cake a day in advance to save time on the day of the celebration.
Keyword celebration cake, graduation cake, sheet cake