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Perfect Gold Confetti Sheet Cake Recipe for Easy Graduation Celebrations

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A quick, festive, and foolproof gold confetti sheet cake perfect for graduation parties, featuring a moist vanilla cake with a luscious buttercream frosting and celebratory sprinkles.

Ingredients

Scale
  • 2¾ cups (345 g) all-purpose flour
  • 2½ teaspoons baking powder
  • ½ teaspoon baking soda
  • ½ teaspoon salt
  • 1 cup (226 g) unsalted butter, softened
  • 1¾ cups (350 g) granulated sugar
  • 4 large eggs, room temperature
  • 1 tablespoon pure vanilla extract
  • 1 cup (240 ml) sour cream, full-fat
  • 1 cup (240 ml) whole milk
  • 1 cup (about 150 g) gold and white confetti sprinkles (non-melting)
  • For the Frosting:
  • 1 cup (226 g) unsalted butter, softened
  • 4 cups (480 g) powdered sugar, sifted
  • 2 teaspoons pure vanilla extract
  • 3–4 tablespoons (45–60 ml) whole milk or heavy cream
  • Pinch of salt
  • Additional gold confetti sprinkles for decorating

Instructions

  1. Preheat the oven to 350°F (175°C). Grease a 9×13 inch sheet cake pan with butter or non-stick spray and lightly dust with flour.
  2. In a large bowl, whisk together flour, baking powder, baking soda, and salt. Set aside.
  3. Using an electric mixer on medium speed, beat softened butter with sugar until light and fluffy, about 3-5 minutes.
  4. Add eggs one at a time, mixing well after each addition. Beat in vanilla extract.
  5. Alternately add dry ingredients and wet ingredients (sour cream and whole milk) to the butter mixture, starting and ending with dry ingredients. Mix on low speed just until combined.
  6. Gently fold in gold and white confetti sprinkles with a spatula, being careful not to overmix.
  7. Pour batter into prepared pan and smooth the top. Bake for 35-40 minutes or until a toothpick inserted in the center comes out clean.
  8. Let cake cool in the pan on a wire rack for 20 minutes, then invert onto the rack to cool completely.
  9. To make frosting, beat softened butter until creamy. Gradually add powdered sugar, mixing on low speed.
  10. Add vanilla extract, pinch of salt, and 3-4 tablespoons milk or cream. Beat on high until fluffy and spreadable, adjusting consistency as needed.
  11. Spread frosting evenly over cooled cake using an offset spatula.
  12. Sprinkle additional gold confetti sprinkles on top for decoration.

Notes

Use room temperature eggs and butter for best texture. Fold sprinkles in gently to prevent color bleeding. Chill frosting if kitchen is warm before spreading. Do not frost cake while warm to avoid melting frosting. For dairy-free or gluten-free adaptations, see substitution tips in recipe.

Nutrition

Keywords: gold confetti cake, sheet cake, graduation cake, vanilla cake, buttercream frosting, easy cake recipe, festive cake, party dessert

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