This Funfetti Sheet Cake Will Impress Everyone Instantly : Try Now

Posted on June 1, 2026 ·

By Lyndy

most celebratory sheet cake!

A Simple Tool I Use Every Week

Make Weekly Meals Simple

Plan your meals, organize recipes, and simplify grocery shopping with this easy-to-use Google Sheets meal planner.

Get My Meal Planner

If you’re looking for the perfect party dessert, this Funfetti Sheet Cake is exactly what you need. Soft, fluffy vanilla cake filled with colorful sprinkles and topped with creamy frosting creates a cheerful dessert that’s guaranteed to brighten any celebration. Whether you’re hosting a birthday party, family gathering, school event, or holiday celebration, this cake delivers both fun and flavor in every bite.

This Funfetti Sheet Cake is one of the best 9×13 Cake Recipes From Scratch because it’s simple to make, easy to serve, and packed with festive charm. If you’ve been searching for a Homemade Funfetti Sheet Cake, delicious Birthday Cake Squares, or the Best White Sheet Cake Recipe, you’ve found the perfect recipe.

Why Funfetti Sheet Cake Is the Perfect Celebration Dessert?

There is something timeless and joyful about a sprinkle-filled cake. This colorful dessert instantly turns any occasion into a celebration.

A Colorful Twist on White Sheet Cake Recipes

Traditional white cake is always delicious, but rainbow sprinkles add color, texture, and fun. Every slice feels festive and exciting.

Funfetti cakes appeal to both kids and adults. They are simple, nostalgic, and perfect for celebrations of all sizes.

What Makes This Funfetti Sheet Cake So Special?

This cake combines a soft vanilla crumb with colorful sprinkles and creamy frosting.

Soft, Moist, and Loaded With Sprinkles

The cake stays moist for days while colorful sprinkles create beautiful bursts of color throughout every slice.

Perfect for Birthdays, Parties, and Family Gatherings

Because it is baked in a sheet pan, serving a crowd becomes simple and convenient.

Ingredients for Funfetti Sheet Cake

Key Ingredients for Homemade Funfetti Sheet Cake

For the Cake

  • 2½ cups all-purpose flour
  • 2 teaspoons baking powder
  • ½ teaspoon baking soda
  • ½ teaspoon salt
  • ¾ cup unsalted butter, softened
  • 1¾ cups granulated sugar
  • 4 large egg whites
  • 1 tablespoon vanilla extract
  • 1 cup sour cream
  • ¾ cup whole milk
  • ¾ cup rainbow sprinkles

For the Cream Cheese Frosting

  • 8 ounces cream cheese, softened
  • ½ cup unsalted butter, softened
  • 4 cups powdered sugar
  • 2 teaspoons vanilla extract
  • 1–2 tablespoons milk if needed

For Decoration

  • Extra rainbow sprinkles
  • Colored sugar (optional)

Ingredient Substitutions and Variations

You may substitute Greek yogurt for sour cream. Different sprinkle colors can be used for themed celebrations and holidays.

For another festive dessert, try Funfetti Cookies.

Kitchen Equipment Needed for Funfetti Sheet Cake

You’ll need:

  • 9×13-inch baking pan
  • Mixing bowls
  • Electric mixer
  • Measuring cups and spoons
  • Rubber spatula
  • Cooling rack
  • Offset spatula

Step-by-Step Preparation for Funfetti Sheet Cake

Preparing the Cake Batter

Preheat oven to 350°F (175°C).

Grease and lightly flour a 9×13-inch baking pan.

In a medium bowl whisk together:

  • Flour
  • Baking powder
  • Baking soda
  • Salt

In a large bowl beat:

  • Butter
  • Sugar

Beat until light and fluffy.

Add egg whites one at a time.

Mix in vanilla extract.

Add sour cream and mix until smooth.

Gradually alternate adding dry ingredients and milk until fully combined.

Fold in rainbow sprinkles gently.

Baking the 9×13 or 13×9 Sheet Cake

Spread batter evenly into the prepared baking pan.

Bake for 32–38 minutes or until a toothpick inserted into the center comes out clean.

Allow the cake to cool completely before frosting.

Adding Cream Cheese Frosting and Sprinkles

Beat cream cheese and butter until smooth.

Gradually add powdered sugar.

Mix in vanilla extract.

Add milk if necessary to achieve a spreadable consistency.

Spread frosting evenly over the cooled cake.

Decorate generously with rainbow sprinkles.

Expert Tips for the Best Funfetti Sheet Cake

Use room-temperature ingredients to ensure smooth mixing and even baking.

Common Mistakes to Avoid

Avoid overmixing the batter after adding the flour. This can result in a dense cake.

Tips for Soft and Fluffy Cake Squares

Measure flour accurately and avoid overbaking to maintain a tender crumb.

Serving and Presentation Ideas for Funfetti Sheet Cake

Creative Birthday Cake Squares Presentation Ideas

Cut the cake into neat squares and top each piece with extra sprinkles before serving.

Arrange cake squares on a colorful dessert platter for a festive presentation.

Pairing Ideas With Desserts

Serve this Funfetti Sheet Cake alongside:

for a celebration-worthy dessert table.

Variations of Funfetti Sheet Cake

Box Cake Sheet Cake Version

Short on time? Use your favorite white cake mix and fold in rainbow sprinkles for a quicker version.

Homemade Scratch Funfetti Cake Variation

For the richest flavor, stick with the homemade recipe and use high-quality vanilla extract.

How to Store Funfetti Sheet Cake

Refrigeration Tips

Store covered in the refrigerator for up to 5 days.

Allow slices to come to room temperature before serving for the best texture.

Freezing Instructions

Freeze unfrosted cake for up to 3 months.

Wrap tightly in plastic wrap and foil before freezing.

Frequently Asked Questions About Funfetti Sheet Cake

Can I Make Funfetti Cake Ahead of Time?

Yes. Bake the cake one day ahead and frost before serving.

How To Keep Cake Moist and Soft?

Store it covered and avoid overbaking.

Can I Use Different Frosting Types?

Absolutely. Vanilla buttercream, whipped frosting, or cream cheese frosting all pair beautifully with Funfetti cake.

Common Mistakes to Avoid

For the best results:

  • Using cold ingredients
  • Overmixing the batter
  • Adding too many sprinkles
  • Overbaking the cake
  • Frosting before the cake cools

Why You’ll Love This Funfetti Sheet Cake

  • Easy to make
  • Perfect for birthdays
  • Soft and fluffy texture
  • Beautiful colorful appearance
  • Ideal for feeding a crowd
  • Customizable for holidays
  • Beginner-friendly recipe

Final Thoughts on Funfetti Sheet Cake

This Funfetti Sheet Cake is soft, colorful, and packed with celebration-worthy flavor. Whether you’re searching for a Homemade Funfetti Sheet Cake, the Best White Sheet Cake Recipe, or easy Birthday Cake Squares, this recipe delivers everything you need for a memorable dessert.

The fluffy vanilla cake, creamy frosting, and vibrant sprinkles create a dessert that is both nostalgic and irresistible.

Print
clock clock iconcutlery cutlery iconflag flag iconfolder folder iconinstagram instagram iconpinterest pinterest iconfacebook facebook iconprint print iconsquares squares iconheart heart iconheart solid heart solid icon

This Funfetti Sheet Cake Will Impress Everyone Instantly – Try Now


  • Author: Lyndy
  • Total Time: 1 hour
  • Yield: 12 servings 1x

Description

Funfetti Sheet Cake is soft, colorful, and perfect for celebrations. Bursting with rainbow sprinkles and topped with creamy cream cheese frosting, this easy 13×9 cake is ideal for birthdays, parties, gatherings, and festive dessert tables.


Ingredients

Scale
  • Cake Ingredients:
  • 2½ cups all-purpose flour
  • 2½ teaspoons baking powder
  • ½ teaspoon salt
  • ¾ cup unsalted butter, softened
  • 1¾ cups granulated sugar
  • 4 large eggs
  • 1 tablespoon vanilla extract
  • 1 cup whole milk
  • ½ cup rainbow sprinkles
  • Cream Cheese Frosting:
  • 8 ounces cream cheese, softened
  • ½ cup unsalted butter, softened
  • 3 cups powdered sugar
  • 1 teaspoon vanilla extract
  • Optional Decorations:
  • Additional rainbow sprinkles
  • Edible glitter
  • Chocolate drizzle
  • White chocolate drizzle

Instructions

  1. Preheat Oven: Preheat oven to 350°F (175°C). Grease and flour a 13×9-inch baking pan or line with parchment paper.
  2. Mix Dry Ingredients: In a medium bowl, whisk together flour, baking powder, and salt.
  3. Cream Butter and Sugar: In a large bowl, beat butter and sugar until light and fluffy.
  4. Add Eggs and Vanilla: Add eggs one at a time, mixing well after each addition. Stir in vanilla extract.
  5. Combine Batter: Alternate adding flour mixture and milk, beginning and ending with flour, until smooth.
  6. Add Sprinkles: Gently fold in rainbow sprinkles until evenly distributed. Avoid overmixing to prevent color bleeding.
  7. Bake: Pour batter into the prepared pan and smooth the top. Bake for 35–40 minutes or until a toothpick inserted in the center comes out clean.
  8. Cool: Let cake cool in the pan for 10 minutes, then transfer to a wire rack to cool completely.
  9. Make Frosting: Beat softened cream cheese and butter until smooth. Gradually add powdered sugar and vanilla extract. Mix until creamy and spreadable.
  10. Frost and Decorate: Spread frosting over cooled cake and top with extra rainbow sprinkles.
  11. Serve: Slice into birthday cake squares and serve.

Notes

  • Do not overmix: Overmixing can make the cake dense.
  • Do not frost warm cake: Warm cake can melt the frosting.
  • Use rainbow jimmies: They work best and reduce color bleeding.
  • Make ahead: Bake the cake one day ahead and frost before serving.
  • Storage: Store at room temperature for up to 3 days or refrigerate for up to 5 days if frosted.
  • Prep Time: 20 minutes
  • Cook Time: 40 minutes
  • Category: Dessert
  • Method: Baking
  • Cuisine: American

Nutrition

  • Serving Size: 1 square
  • Calories: 430
  • Sugar: 42g
  • Sodium: 210mg
  • Fat: 19g
  • Saturated Fat: 11g
  • Unsaturated Fat: 6g
  • Trans Fat: 0g
  • Carbohydrates: 60g
  • Fiber: 1g
  • Protein: 5g
  • Cholesterol: 95mg

Keywords: Funfetti Sheet Cake, Homemade Funfetti Sheet Cake, Best White Sheet Cake Recipe, Birthday Cake Squares, 13×9 Cake

Tags:

You might also like these recipes

Leave a Comment

Recipe rating