Really Good Funfetti Sheet Cake 

Elevate your celebrations with this delightful Funfetti Sheet Cake, a perfect blend of vibrant colors and exquisite taste. This cake not only looks festive with its array of rainbow sprinkles but is also topped with a luscious strawberry cream cheese frosting that adds a touch of elegance. Ideal for birthdays, parties, or any festive gathering, this cake promises to be a crowd-pleaser!


For the Funfetti Sheet Cake:
  • 3 3/4 cups (645 g) all-purpose flour
  • 1 3/4 cups (400 g) caster sugar
  • 4 1/2 tsp baking powder
  • 3/4 tsp fine salt
  • 3/4 cup (190 g) unsalted butter, softened
  • 3 large eggs
  • 2 1/4 cups (560 ml) milk
  • 3/4 cup (190 ml) vegetable oil
  • 1 cup (250 g) sour cream
  • 1 1/2 tsp vanilla extract
  • 3/4 cup funfetti sprinkles
For the Strawberry Cream Cheese Frosting:
  • 1 cup (250 g) cream cheese, chilled
  • 1 cup (250 g) unsalted butter, softened
  • 1/2 tsp salt
  • 2 cups (300 g) powdered sugar
  • 1/2 tsp strawberry flavoring
  • 2 tsp vanilla extract
  • 1/2 cup (100 g) funfetti sprinkles


  1. Prepare the Cake:
    • Preheat your oven to 320°F (160°C). Grease a 9×13-inch sheet cake pan with oil and line with parchment paper.
    • In a large bowl, whisk together flour, sugar, baking powder, and salt. Add softened butter and blend until the mixture has a crumb-like texture.
    • In another bowl, whisk eggs, milk, oil, sour cream, and vanilla extract until well combined. Gradually mix these wet ingredients into the dry ingredients until smooth. Gently fold in the funfetti sprinkles.
    • Pour the batter into the prepared pan, smoothing the top with a spatula. Bake for 50-60 minutes, or until a toothpick inserted in the center comes out clean. Allow the cake to cool completely in the pan.
  2. Prepare the Frosting:
    • In a mixing bowl, beat together the chilled cream cheese, softened butter, and salt until smooth. Gradually add the powdered sugar and continue beating until the frosting is fluffy and light. Incorporate the strawberry flavoring and vanilla extract.
  3. Decorate the Cake:
    • Once the cake is completely cooled, spread the strawberry cream cheese frosting evenly over the top. Use a spatula to create wavy patterns in the frosting. Sprinkle additional funfetti sprinkles over the frosting for a festive finish.


  • Ingredient Temperature: Ensure all ingredients, especially the butter, cream cheese, and eggs, are at room temperature to facilitate smoother mixing and a more homogeneous cake batter.
  • Frosting Fluffiness: For an extra fluffy frosting, beat the mixture on high speed to incorporate more air, making it light and airy.
  • Storage: Store the cake in an airtight container at room temperature to maintain its moisture and freshness for up to three days.


This Funfetti Sheet Cake with Strawberry Cream Cheese Frosting combines the joy of funfetti with the elegance of strawberry, making it a versatile choice for any celebration. Whether it’s a birthday, anniversary, or a simple get-together, this cake is sure to bring smiles and a burst of color to your table. Enjoy the process of making and sharing this wonderful cake!

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