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The BEST Funfetti Sheet Cake Recipe

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This light and fluffy vanilla Funfetti Sheet cake is a classic go-to for birthdays and it’s so delicious. It’s topped with a rich, sweet, and velvety handcrafted buttercream frosting and large enough to feed a crowd at birthday parties, holidays, and more.

stack of three pieces of funfetti cake with sprinkles on the table
the lightest, fluffiest cake

WHY WE LOVE THIS RECIPE

I keep this recipe on hand for dessert all special occasions because it’s easily customizable for Easter, baby showers, children’s birthdays, and more. The bright and colorful sprinkles are especially perfect for springtime desserts.

  • customizable sprinkles to suit the season or occasion
  • kids love the vibrant colors
  • it’s a classic vanilla cake sure to please all
  • a simple, yet yummy recipe that’s fool-proof
ingredients for funfetti sheet cake, including butter, flour, sprinkles, yogurt, vanilla extract
simple, beautiful ingredients

INGREDIENTS

It’s also critical to use the correct ingredients. Quite often, I hear of complete disasters coming from using alternatives.  Recipes developed with other ingredients can and usually do fail, so it’s important to stick to the ingredients and measurements in this easy cake recipe

Cake

  • butter
  • sugar
  • egg whites
  • vanilla extract- no substitutes
  • all-purpose flour
  • baking powder
  • baking soda 
  • milk
  • yogurt 
  • sprinkles– get creative and choose your favorite colors

Buttercream frosting

  • powdered sugar
  • butter
  • heavy whipping cream
  • vanilla
  • confetti sprinkles
steps for making a funfetti cake batter, including mixing wet ingredients first then dry ingredients together
parchment paper is best to prevent sticking

DIRECTIONS

Equipment needed: 13×9 baking pan

I can’t tell you how many readers have written me about a failed cake recipe. Only to discover that they weren’t using the proper size pan. Gotta check the pan!

For the cake

  1. Preheat the oven. Set parchment paper on your baking pan and set aside. 
  2. In a standing mixer, mix the butter until smooth and combine with sugar. 
  3. Little by little add in the egg whites until combined. 
  4. In another bowl, sift the flour, baking powder, and baking soda. Mix until evenly combined. 
  5. In a small sauce dish mix the yogurt with the milk and vanilla. Add a bit at a time to your dry mixture.
  6. Mix until smooth and try not to over mix. Fold in the sprinkles and pour the batter onto your baking pan. 
  7. Place in the oven and bake until you stick a toothpick in and it comes out clean. 
  8. Remove from the oven and let it cool. 
  9. Once it is cool, spread the buttercream and top with sprinkles.
steps for making the buttercream frosting
making the buttercream frosting is fun and easy

For the buttercream

  1. In a medium bowl mix the butter with a hand mixer until it is light and creamy.
  2. Add in the powdered sugar, the vanilla, and the whipping cream.
  3. Mix until combined. Fold in half of the sprinkles into the buttercream and the rest sprinkled on top.
funfetti sprinkled sheet cake sliced into 9 identical pieced with a tall glass of milk
customize this cake with your favorite sprinkles

EXPERT TIPS

Follow these easy tips to help you get the perfect cake, every time.

  • cake is finished when a toothpick comes out clean from the center
  • wait until the cake is completely cooled before adding frosting, otherwise it will melt
  • I recommend using parchment paper so the cake will not stick to the pan and is easy to remove in one whole piece
sprinkles next to sheet cake covered with sprinkles
a classic party cake you’ll use time and time again

FAQ

Substitutions

Every single ingredient is important to the consistency, taste, and beauty of this cake.

The butter and vanilla extract give the cake an unrivaled vanilla cake flavor, while creaming the butter and sugar gives the cake a soft, light and fluffy texture. You’ll want to use all the ingredients mentioned in the recipe card below.

Note: you may substitute yogurt for sour cream in this recipe.

No sprinkles? I’ve made this recipe without them, then added in cereal bits to the frosting. Try Fruity Pebbles or Cocoa Pebbles.

Time savers

A delicious vanilla frosting is slathered on top of this buttery cake and just enough added sweetness in every bite, but not too much it overpowers the fluffy cake below.

However, if you’re in a pinch and need to save time, you may use your favorite store-bought frosting.

A fantastic cake-to-frosting ratio is what you’re looking for here. Use your own judgement and customize to suit your taste.

How to store leftovers

This cake can be stored in an air-tight container for up to three days or refrigerated for up to five days.

Freeze in a zippered, air-tight bag for up to three months. Thaw overnight in the fridge and re-heat in the microwave for 10 seconds.

large glass of milk next to 6 slices of thick and fluffy sprinkled cake
birthday goers will thank you

SERVING SUGGESTIONS

Serve this yummy cake with…

  • a cold glass of milk
  • ice cream
  • fresh fruit
three pieces of funfetti cake with sprinkles stacked on top of one another

Funfetti Sheet Cake

This funfetti sheet cake puts the fun in funfetti! A scrumptious sprinkled cake base is topped with a velvety buttercream frosting you can't resist. Perfect for sleepovers, parties, potlucks and more.
4.67 from 3 votes
Print Pin Rate
Course: Dessert
Cuisine: American
Prep Time: 7 minutes
Cook Time: 30 minutes
Total Time: 37 minutes
Servings: 12
Calories: 363kcal
Author: Amber

Equipment

  • 1 13×9 baking pan

Ingredients

cake ingredients

frosting ingredients

Instructions

cake

  • Preheat the oven to 340 degrees. Set parchment paper on your baking pan and set aside. 
  • In a standing mixer or large bowl, mix the butter until smooth and combine with sugar. 
  • Little by little add in the egg whites until combined. 
  • In another bowl, sift the flour, baking powder, and baking soda. Mix until evenly combined. 
  • In a small sauce dish mix the yogurt with the milk and vanilla. Once it is combined add it little by little into your butter mixture, alternating with the dry ingredients. Scrape the sides to make sure you have all the ingredients.
  • Mix until smooth and try not to over mix. Fold in the sprinkles and pour the batter onto your baking pan. 
  • Place in the oven and bake for 25 to 30 minutes until you stick a toothpick in and it comes out clean. 
  • Remove from the oven and let it cool. 
  • Once it is completely cool, spread the buttercream and top with Funfetti sprinkles. 

buttercream frosting

  • In a medium bowl mix the butter with a hand mixer until it is light and creamy.
  • Add in the powdered sugar, the vanilla, and the whipping cream. Mix until combined. 
  • Fold in half of the sprinkles into the buttercream and the rest sprinkled on top.

Nutrition

Calories: 363kcal | Carbohydrates: 76g | Protein: 5g | Fat: 5g | Saturated Fat: 3g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 1g | Cholesterol: 14mg | Sodium: 114mg | Potassium: 113mg | Fiber: 1g | Sugar: 57g | Vitamin A: 166IU | Vitamin C: 1mg | Calcium: 85mg | Iron: 1mg

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