Food & Recipes

Homemade Funfetti Cupcakes

A delicious recipe for homemade funfetti cupcakes. You can adapt the colours for any occasion, and decorate them how you like!

funfetti cupcake with vanilla frosting

It’s my birthday month (I swear, I’m not one of those people) but I figured I had to bring back these yummy desserts!  This recipe for homemade funfetti cupcakes is probably the easiest hack ever – you won’t be tempted to go back to the box mix again.  Plus, you can customize the colours of the sprinkles this way too! 

You know I love a rainbow treat, and these homemade funfetti cupcakes are like a subtle rainbow.  Since I’ve made them a few times, I’m also going to share both ways I’ve frosted them in the past. 

homemade funfetti cupcakes text overlay with rose frosted cupcake

This time, I went with the traditional funfetti icing, but check out how I’ve done a rainbow marble too.

The original recipe came about because I happened to have a bunch of rainbow sprinkles and cupcake liners.  Spoiler, I still had the leftovers all these years later (and luckily I’ve calmed down my impulse shopping ha). 

vanilla cake batter with rainbow sprinkles

To make homemade funfetti cupcakes, you need to add sprinkles to a batch of vanilla cupcakes!  I’ve updated my recipe to make a batch of 12 cupcakes, so it should make the perfect amount for a muffin pan.  Plus, you can always double it to get more! 

Scoop the batter into a lined muffin pan, making sure each cupcake is filled about 2/3 high.  Do not spray the tray or the liners, or the cupcakes will be extra greasy.  Lightly tap (pick up and drop) the muffin pan so that the batter settles down a bit.

Bake for 18-24 minutes, until the tops are set and the centre is cooked.

rose frosted funfetti cupcakes

You should end up with 12 perfectly flat cupcakes.  For this newest batch, I made some funfetti frosting as well.  About 2 cups of icing was enough to cover my cupcakes, but if you like a really high frosting, you might need a bit more.  

Make Homemade Buttermilk

I’m always making cakes that call for buttermilk, and I don’t think I’ve ever bought buttermilk.  Maybe the real stuff is better (?) but it’s really easy to make your own!

rainbow funfetti cupcakes with white frosting

Simply measure a cup of milk (I use homo, but 1 or 2% is fine too) – then add either a bit of white vinegar, or lemon juice.  The acidity will cause the milk to curdle.  

I like to start my buttermilk and set it aside to bubble while I mix the other ingredients.  

Marble Rainbow Frosting

The first time I made homemade funfetti cupcakes, I decorated them with a marble rainbow frosting.  

mixing rainbow marble frosting

I mixed up one batch of icing, and made it a bit runnier than normal (but regular consistency could have worked too).  Then, I separated the frosting into 4 bowls and added different food colouring to each.

Once the colours were mixed, I plopped a spoonful onto each cupcake.  I tried to make sure there was the same amount of icing from each colour on all the cupcakes, but I ended up with a bit more blue and green.

rainbow frosting cupcakes

I loosely blended the colours using a butter knife, being careful to preserve the different colours and not mix them together.  They all had their own unique look, and I thought it was super fun!

rose funfetti frosting

This time, I mixed up a batch of buttercream and once again, added some rainbow sprinkles.  

funfetti cupcake inside with sprinkles

Although this time, I was running out of my rainbow mix so added the single colours I had (blue, yellow and orange/black).  The blue sprinkles made the cupcakes a bit bluer this time!

Imagine funfetti cupcakes with all red sprinkles for Valentine’s for Canada Day.  Or green for St-Patrick’s Day!  The possibility are endless :) 

vanilla cake frosting with funfetti sprinkles

Homemade Funfetti Cupcakes

Dessert Canadian
By Nicole Q-Schmitz Serves: 12
Cooking Time: 18-24 minutes Total Time: 1 hour

Check out this delicious recipe for homemade funfetti cupcakes. You can adapt the colours for any other occasion, and decorate them how you like!


  • 1/4 cup (half a stick) softened butter
  • 1/2 cup sugar
  • 2 eggs
  • 2 tsp vanilla extract
  • 1/2 cup buttermilk (see post for how to make your own!)
  • 1 cup flour
  • 1/2 tsp baking powder
  • 1/2 tsp baking soda
  • 1/4 tsp salt
  • 1/4 cup sprinkles
  • Icing (approx 2 cups)
  • Optional: food colouring



Preheat oven to 350ºF


Prepare buttermilk, set aside


In a small bowl, combine the flour baking soda, powder and salt


In a large bowl, beat the butter and sugar together


Add in the buttermilk and flour mixture to the big bowl, mix again


Scoop in desired sprinkles, and stir


Pour batter into a lined muffin pan


Bake for 18-24 minutes, until cupcakes are set


Remove from the oven and leave the cupcakes in the pan for a couple of minutes, then transfer to a wire rack to cool completely


Prepare icing and decorate as desired


See the post for tips on how to make rainbow marble icing, or funfetti icing!

homemade funfetti cupcakes text overlay with cupcakes

I hope you enjoy these homemade funfetti cupcakes!  Like I mentioned, it’s a simple concept, but totally customizable to what you want.  Do you prefer the marble rainbow frosting or the funfetti vanilla one?  PS: I used a 1M tip to make the rose-style, it’s really easy, but looks so fancy!

Let me know if you adapt the recipe sprinkle/frosting colour for a specific occasion :) 

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  • Reply
    March 29, 2015 at 6:10 pm

    When was your birthday??? I would have made you a cake!! Maybe not this cool looking though. But I would have tried. :)

    • Reply
      March 30, 2015 at 2:23 pm

      No worries! It was on Tuesday, and you did let me eat a brownie – which was delicious!

  • Reply
    March 10, 2016 at 3:12 pm

    I made some store bought funfetti to take to a carnival and they were awful! thanks for the recipe so I can make my own. Thanks for sharing on the Creative K Kids Tasty Tuesdays Linky Party. I hope you will join us again next week.

    • Reply
      March 11, 2016 at 8:27 am

      Thank you! You could even do custom funfetti batter by customizing the colour sprinkles you use, the possibilities are almost endless :)

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