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Moist Vanilla Funfetti Sheet Cake Recipe Perfect for Easy Birthday Parties

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A moist vanilla funfetti sheet cake with creamy buttercream frosting that’s quick, easy, and perfect for birthdays or any celebration. This cake is tender, soft, and bursting with sweetness and colorful sprinkles.

Ingredients

Scale
  • 2 ½ cups (312 grams) all-purpose flour
  • 2 ½ teaspoons baking powder
  • ½ teaspoon salt
  • 1 cup (226 grams) unsalted butter, softened
  • 1 ¾ cups (350 grams) granulated sugar
  • 4 large eggs, room temperature
  • 2 teaspoons pure vanilla extract
  • 1 cup (240 ml) whole milk
  • ¾ cup (about 120 grams) rainbow sprinkles
  • For buttercream frosting:
  • 1 cup (226 grams) unsalted butter, softened
  • 4 cups (480 grams) powdered sugar, sifted
  • 1 ½ teaspoons pure vanilla extract
  • 23 tablespoons (3045 ml) heavy cream
  • Pinch of salt

Instructions

  1. Preheat oven to 350°F (175°C). Grease a 9×13-inch pan with butter or non-stick spray and line the bottom with parchment paper.
  2. In a medium bowl, whisk together flour, baking powder, and salt.
  3. In a large bowl, beat softened butter and granulated sugar with an electric mixer until light and fluffy, about 3-4 minutes.
  4. Beat in eggs one at a time, mixing well after each addition, then stir in vanilla extract.
  5. Gradually add the flour mixture in three parts, alternating with milk, starting and ending with flour. Mix gently but thoroughly.
  6. Fold in rainbow sprinkles gently with a spatula.
  7. Pour batter into prepared pan and smooth the top. Tap pan lightly to release air bubbles.
  8. Bake for 35-40 minutes or until a toothpick inserted in the center comes out clean. Check starting at 33 minutes to avoid overbaking.
  9. Cool cake in pan for 15 minutes, then transfer to a cooling rack to cool completely before frosting.
  10. For frosting, beat softened butter until creamy. Gradually add powdered sugar, then mix in vanilla extract, salt, and heavy cream until light and fluffy.
  11. Spread buttercream evenly over cooled cake using an offset spatula or butter knife. Optionally, decorate with additional sprinkles.

Notes

Use firm, non-melting sprinkles to prevent color bleeding. Do not overmix batter after adding sprinkles. Use room temperature eggs and butter for best texture. Line pan with parchment paper for easy removal. Chill frosted cake for 30 minutes for cleaner slicing. Adjust frosting consistency with heavy cream or powdered sugar as needed.

Nutrition

Keywords: vanilla funfetti cake, sheet cake, birthday cake, buttercream frosting, easy cake recipe, moist cake, sprinkles cake