Spa Sleepover Birthday Party: Marshmallow Nail Polish Cupcakes

nail polish cupcakesMarshmallow Nail Polish Cupcakes

This is one of our most popular Pins!  Sharing it again because they’re great for a birthday party, girls’ night, or “just because”…we’d love it if you’d Pin it too!

These Marshmallow Nail Polish Cupcakes were the perfect treat for my daughter’s Spa Sleepover ninth birthday party.  We originally spotted the idea for marshmallow nail polish treats in the catalog for birthday party supplies, but the instructions weren’t included.  We could tell that the basic idea was a big marshmallow, some sort of sprinkles or coloring to make it look like nail polish, and a Tootsie Roll on top to look like the nail polish cap.

After doing a little searching, I found a few variations for making the treats.  One involved dipping the marshmallows in colored candy melts, which was a little more work and mess than I wanted to do.  Another option was to use spray food coloring to color the marshmallows: this yielded vibrant colors and seemed relatively simple to do, but I didn’t have the spray food coloring handy (and didn’t really have the time to hunt it down!)

I loved the look of the sanding sugar sprinkles, but wasn’t sure how to get them stuck to the marshmallow.  One option suggested melting frosting to thin it, then dipping the marshmallows and covering with sprinkles.  That sounded way too messy.  Finally, we stumbled upon a suggestion to just dampen the marshmallow with water and roll it.  Bingo–super simple, not too messy, and most importantly: effective!

Be sure to grab a bag of marshmallows that has plenty of nice plump, round ones–the smushed ones don’t look as nice!  We chose a few colors of sugar sprinkles that matched our party theme and were ready to roll.  Here’s how to do it step by step:

nail polish cupcakes step by step

We’d love it if you’d share or Pin this recipe if you find it helpful, along with the other fun ideas we used for our Spa Sleepover birthday party–we all had a great time!

***Pretty ways to display the cupcakes make such a difference! You can find a variety of beautiful cupcake stands HERE at a variety of price points. Here’s a great cupcake carrier to transport the cupcakes in if you need it!


Be sure to check out the rest of our great Spa Sleepover Party ideas:



  1. Lora says

    Adorable!!!!!! We’re going to make them for my daughter’s “Spa_Tacular” party. How far in advance would you recommend making these?

    • Megan says

      You could probably do the marshmallows and ice the cupcakes the day before, but I think I’d wait to put the “nail polish” bottles on the cupcakes till the day of–the icing might make the marshmallows a little squishy if they sit overnight. Be sure to check out all the other “Spa” birthday party ideas we shared–my daughter and her friends had so much fun! Hope you do too!

  2. Kim says

    I made these for my daughter’s 10th Birthday party (she had an un-slumber party). They came out great, I wish I could upload pictures for you to see. Thank you!!

  3. Chamila says

    hi there, i want to try rolling or spraying the marshmallows with water and dipping into colored sugar too. Wanted to know if the colored sugar dries well on the marshmallows later on? or its sticky to the hands?

    did u make ur own colored sanding sugar? If so, is gel or water based color advisable?

    • Megan says

      Just spray them lightly- don’t soak them. They’ll dry pretty quickly. I bought the sugar already colored–much easier that way! Any store bought “sugar” type sprinkles will work.


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