Bold Baking Basics

Easy Funfetti Frosting

4.34 from 6 votes
If you want your frosting to be as fun as it is delicious, make my easy Funfetti Frosting recipe — buttercream perfect for celebratory cakes!
A bowl of funfetti frosting.

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Hi Bold Bakers!

WHAT YOU GET: Colorful, cheerful vanilla-flavored funfetti frosting that’s full of rainbow sprinkles and extremely easy to make.

Bring the party to any cake with your very own homemade Funfetti Frosting! Nothing says a festive “Happy Birthday” better than the iconic rainbow-sprinkled frosting — and this delicious vanilla-flavored icing is way better than storebought.

Kids love Funfetti Frosting, but every time I make it, I’m surprised how much the adults do too. There’s something so nostalgic about the beautiful mix of colors in delicious vanilla frosting that brings out the kid in everyone. 

The pros of opting to make homemade frosting versus storebought? You know precisely what you’re putting in, you can really taste the butter, sugar, and vanilla, you can adjust the sweetness to your liking, and you can dump in the whole bottle of sprinkles if you want. It’s up to you!

A top-down view of funfetti frosting in a blue bowl.

What Type Of Frosting Is Funfetti Frosting?

My homemade Funfetti frosting is a vanilla buttercream frosting with sprinkles swirled throughout. This means the main components of this icing are butter, powdered sugar, and vanilla extract. 

How To Get Smooth, Fluffy Buttercream

The secret to getting smooth, fluffy, airy buttercream is to take your time. When making buttercream, many people whip their butter for a few minutes and then start to add in their sugar, but it takes time to get a light and airy result. You want to incorporate as much air as possible into the butter, so I suggest whipping your butter for a full 7-8 minutes. After that amount of time, I finally start to add in my sifted powdered sugar, one spoonful at a time.

How To Get The Perfect Buttercream Texture

The texture is just as important as taste, in my opinion. If the buttercream is too runny, it won’t stay on your cake or cupcakes — but if it’s too thick, it’s also a really unpleasant experience, both decorating and eating. 

If your Funfetti buttercream is too thin, try adding more sifted powdered sugar, about 3 tablespoons at a time. 

If your buttercream is too thick, add 1 tablespoon of milk at a time until you reach your desired consistency. It won’t take much milk to fix the issue! 

Can You Freeze Funfetti Frosting?

Yes! You can keep Funfetti frosting in an airtight container in the freezer for up to 2 months. Be sure to bring it to room temperature and re-whisk it before using. 

What You Need To Make Funfetti Frosting

A cake topped with funfetti frosting.

Gemma’s Pro Chef Tips For Making Funfetti Buttercream Frosting

  • Be sure to whip the butter for the full 7-8 minutes to thoroughly aerate this frosting and give it its fluffy texture!
  • Don’t forget to sift the powdered sugar to prevent any unwanted lumps.
  • Make sure to switch the mixer to low speed before adding the powdered sugar, or it will make a big mess of your kitchen!
  • You can pipe this frosting but use a large pastry tip. Otherwise, the sprinkles may clog the opening.
  • This frosting is perfect for my Vanilla CupcakesChocolate CupcakesFunfetti Birthday Cake, and Best-Ever Vanilla Birthday Cake.

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Easy Funfetti Frosting Recipe

4.34 from 6 votes
If you want your frosting to be as fun as it is delicious, make my easy Funfetti Frosting recipe — buttercream perfect for celebratory cakes!
Author: Gemma Stafford
Servings: 5 cups
Prep Time 5 minutes
If you want your frosting to be as fun as it is delicious, make my easy Funfetti Frosting recipe — buttercream perfect for celebratory cakes!
Author: Gemma Stafford
Servings: 5 cups


  • cups (12 oz/340 g) unsalted butter (softened)
  • 6 cups (24 oz/690 g) powdered sugar (sifted)
  • 2 teaspoons vanilla extract
  • 2 to 3 tablespoons milk
  • 1 cup (4 oz/115 g) rainbow sprinkles


  • In the bowl of a stand mixer fitted with a whisk attachment or with a medium bowl and a handheld mixer, whip the butter on high speed for 7 to 8 minutes, until very pale and fluffy.
  • Lower the speed to low and gradually whisk in the powdered sugar until it is incorporated.
  • Add the vanilla extract and 2 tablespoons of milk or cream. If the frosting is too thick, add an additional tablespoon of milk or cream.
  • Fold in the rainbow sprinkles until evenly mixed.
  • Use immediately or store in an airtight container at room temperature for up to 2 days.
  • For longer storage, refrigerate for up to 2 weeks or freeze for up to 2 months. Bring up to room temperature on the counter (2 hours if refrigerated, overnight if frozen) and re-whisk briefly before using.
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1 year ago

This is so good

2 years ago

Looks lovely! Due to allergy issues, can the almond extract be omitted but perhaps a little extra vanilla instead? Thanks so much!

About Us

Meet Gemma

About Us

Meet Gemma

Hi Bold Bakers! I’m Gemma Stafford, a professional chef originally from Ireland, a cookbook author, and the creator of Bigger Bolder Baking. I want to help you bake with confidence anytime, anywhere with my trusted and tested recipes and baking tips. You may have seen one of my 500+ videos on YouTube & TikTok or as a guest judge on Nailed It! on Netflix or the Best Baker in America on Food Network. No matter your skills, my Bold Baking Team & I want to be your #1 go-to baking authority.


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