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Perfect High School Graduation Confetti Sheet Cake Easy Cream Cheese Frosting Recipe

confetti sheet cake - featured image

A quick and easy confetti sheet cake with a moist texture and tangy cream cheese frosting, perfect for graduation parties and celebrations.

Ingredients

Scale
  • 2 ½ cups (315g) all-purpose flour
  • 2 ½ tsp baking powder
  • ½ tsp salt
  • 1 cup (230g) unsalted butter, softened
  • 1 ¾ cups (350g) granulated sugar
  • 4 large eggs, at room temperature
  • 1 tbsp vanilla extract
  • 1 cup (240ml) whole milk (or almond milk for dairy-free option)
  • ½ cup (90g) rainbow sprinkles (firm, no-melt sprinkles)
  • 8 oz (225g) cream cheese, softened
  • ½ cup (115g) unsalted butter, softened
  • 4 cups (480g) powdered sugar, sifted
  • 1 tsp vanilla extract
  • Pinch of salt

Instructions

  1. Preheat your oven to 350°F (175°C). Grease and flour a 9×13 inch sheet pan or line it with parchment paper.
  2. In a medium bowl, whisk together 2 ½ cups all-purpose flour, 2 ½ tsp baking powder, and ½ tsp salt. Set aside.
  3. Using an electric mixer, beat 1 cup softened butter with 1 ¾ cups sugar on medium speed for about 3-4 minutes until light and fluffy.
  4. Beat in 4 eggs one at a time, fully incorporating each before adding the next. Mix in 1 tbsp vanilla extract.
  5. Reduce mixer speed to low. Add dry ingredients in three additions, alternating with 1 cup milk, starting and ending with dry ingredients. Mix just until combined.
  6. Gently fold ½ cup rainbow sprinkles into the batter with a spatula, being careful not to over-stir.
  7. Pour batter into the pan, spread evenly and smooth the surface. Bake for 35-40 minutes or until a toothpick inserted in the center comes out clean.
  8. Let the cake cool in the pan for 15 minutes, then transfer to a cooling rack to cool completely before frosting.
  9. Beat 8 oz softened cream cheese and ½ cup softened butter together until smooth (2-3 minutes). Gradually add 4 cups sifted powdered sugar, mixing on low speed. Stir in 1 tsp vanilla extract and a pinch of salt.
  10. Using an offset spatula, spread a thick, even layer of cream cheese frosting on the cooled cake. Optionally, sprinkle extra rainbow sprinkles on top.

Notes

Use firm, no-melt sprinkles to avoid color bleeding. Room temperature ingredients blend better. Do not overmix batter to keep cake tender. Frost cake only when fully cooled to prevent melting. For dairy-free, substitute milk, cream cheese, and butter with plant-based alternatives.

Nutrition

Keywords: confetti cake, sheet cake, graduation cake, cream cheese frosting, easy cake, funfetti, celebration dessert