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Easy Funfetti Cake from Scratch

Funfetti cake makes everyone smile and this recipe is so easy it will make YOU smile! Grab your sprinkles and make the easiest, moistest cake ever!
Slice of homemade funfetti cake on a white plate with a whole cake in the background.
Funfetti cake is one of those iconic recipes that makes people happy. Kids love the colors and sprinkles and adults love the trip back to memory lane when sprinkle cakes were at nearly every birthday party. For this funfetti cake recipe, I wanted to use the recipe from my Chocolate Sheet Cake which I had already modified for my Caramel Sheet Cake. It's such an easy recipe and turns out moist and perfect every time. I love this recipe because it requires no mixer, just a whisk, and it comes together in just a few minutes. Anything that's easy and gets me in and out of the kitchen fast is a winner in my book!
Overhead photo of a whole funfetti cake on a white background.

Funfetti Cake

This recipe for homemade funfetti cake makes just enough for two 9-inch layers or one sheet cake. I use my Homemade Buttercream Frosting Recipe but the cake would also be great with the Cream Cheese Frosting from my Red Velvet Cake.

What do you need for this sprinkle cake?

  • Sprinkles - If you're going to be baking with sprinkles then buy them in large quantities since it's much less expensive than buying multiple small containers from the grocery store. And if kids are helping you, you'll go through A LOT of sprinkles!
  • Cake pans - I love these cake pans from Fat Daddio. You can pay more at a specialty cooking store, but why?
  • Cake stand - this funfetti cake is so pretty, it deserves a lovely display. I adore this aqua-mint color and I'm coveting this stand myself!

Ingredients for Homemade Funfetti Cake

The simplicity of this funfetti cake recipe is what makes it so wonderful. Just like Granny's Chocolate Sheet Cake, this recipe comes together in less than one hour and you only need standard ingredients that you probably have on hand.
  • Flour
  • Salt
  • Sugar
  • Butter
  • Baking soda
  • Buttermilk
  • Eggs
  • Vanilla
  • Sprinkles

How to Make Funfetti Cake

Step 1. Start by generously buttering and flouring two 9-inch cake pans.
You may also like these Sugar Cookie Bars!
Step 2. Mix the sprinkles with a little flour to coat them and set them aside. Then sift the remaining flour and salt into a large bowl. Add the sugar and whisk it all together until well blended. Step 3. This is the part that give this funfetti cake its special moist texture! Combine all of the butter and water in a saucepan and bring to a boil. Then pour the melted butter over the flour mixture and just whisk until it's all blended and looking like batter.

Pro Tip: You can certainly use a hand mixer here, but usually the boiling butter/water mixture is enough to make everything mix up smoothly in just a jiffy.

Step 4. Measure the buttermilk in a measuring cup, then whisk the eggs, soda, and vanilla into the measuring cup. Whisk this into the batter and stir until blended and smooth, then gently stir in the flour-coated sprinkles. Step 5. Pour the batter into the prepared pans and bake for 20-25 minutes, checking the cake after about 15 minutes. The funfetti cake is done when your tester comes out clean but be careful not to overcook. Step 6. Remove pans from oven and allow the cake to cool on a rack for 15 minutes. Then turn the layers onto parchment covered racks and allow them to cool completely, 30 minutes to an hour. Step 7. Frost the sprinkle cake with Classic Buttercream Frosting or Cream Cheese Frosting.

Pro Tip: You could add a little food coloring to make the frosting a fun color like pink, green, or blue!

Tips - How to Put Sprinkles on the Side of a Cake

Once your funfetti cake has frosting on it, just lightly press some sprinkles onto the frosting. Kids love to do this! It doesn't have to be perfect, just fun and colorful. Here's a fun guide to a Sprinkles Birthday Party where you could showcase this fun sprinkle cake!
Side view of a whole sprinkle cake with white frosting on a platter.
A slice of funfetti cake on a plate with a fork.

Easy Homemade Funfetti Cake

This homemade funfetti cake tastes better than the boxed mix and is easy to make. It will give everyone a smile!
4.9 from 19 votes
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Course: Cakes
Cuisine: American
Keyword: funfetti cake, homemade funfetti cake, sprinkles cake
Prep Time: 20 minutes
Cook Time: 25 minutes
Total Time: 45 minutes
Servings: 10 servings
Calories: 640kcal
Author: Lucy Brewer



  • 2 cups plus 2 tablespoons sifted all-purpose flour, divided
  • teaspoon salt
  • 2 cups sugar
  • 2 sticks unsalted butter
  • 1 cup water
  • 1 teaspoon baking soda
  • ½ cup buttermilk
  • 2 large eggs
  • 1 teaspoon vanilla
  • ½ cup sprinkles, plus more for the top

Classic Buttercream Frosting

  • 1 cup unsalted butter, barely softened
  • 3 ¾ cups confectioner's sugar, sifted
  • 2 teaspoons clear vanilla extract, imitation
  • Pinch salt
  • 2-4 tablespoons heavy cream, you can use half-and-half or whole milk



  • Preheat oven to 350. Butter and flour two 9-inch cake pans.
  • Stir one tablespoon of flour into the ½ cup of sprinkles to coat them then set aside. Sift remaining flour and salt into large bowl. Add sugar and whisk until blended.
  • Combine butter and water in a saucepan. Bring to a boil and pour over the flour and sugar, whisking until blended. Add the soda, buttermilk, eggs, and vanilla, and whisk until blended and smooth. Gently stir in the coated ½ cup of sprinkles.
  • Pour batter into greased and floured baking pans. Bake for 20-25 minutes, checking cake after about 15. Cake is done when tester comes out clean but be careful not to overcook.
  • Remove pans from oven and allow to cool on a rack for 15 minutes, then turn layers onto parchment covered racks to cool completely.
  • Frost with Classic Buttercream Frosting or Cream Cheese Frosting.

Classic Buttercream Frosting

  • In bowl of stand mixer and using the paddle attachment, cream butter until light and fluffy about 4 minutes. Add confectioner's sugar, a little at a time (about ½ cup), mixing on low until blended and then whipping on high for about 30 seconds each time. Add vanilla and pinch of salt and mix until blended. Add cream and mix on low until blended then whip on high until frosting reaches desired consistency.
  • For softer frosting, you can add a little more cream. If you get it too soft just add a little more confectioner's sugar.


Serving: 10servings | Calories: 640kcal | Carbohydrates: 67g | Protein: 4g | Saturated Fat: 24g | Cholesterol: 140mg | Sodium: 190mg | Sugar: 48g
Update Notes: This post was originally published November 12, 2015, and on May 11, 2019, was updated with one or more of the following: step-by-step photos, video, updated recipe, new tips.

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Recipe Rating


Friday 23rd of September 2016

the most amazing cake!!! I have made it 5 times already for birthdays and everyone keeps asking for more!! love it

Sharon (Nut Free Wok)

Wednesday 18th of November 2015

Such a beautiful cake! I hesitate to buy boxed cakes so I really like your recipe so I can make it from scratch!


Sunday 15th of November 2015

This is my husband's favorite cake! I should make it for him, and ditch the box, I hate to use it! Pinned!

Holly Irwin

Saturday 14th of November 2015

Hi Lucy, This is so pretty, a work of art! Thanks for sharing! xo Holly

Tara | Deliciously Declassified

Friday 13th of November 2015

Ooooh, I have such a soft spot for anything funfetti - this cake looks so good!