If you want to make awesome cupcake bath bombs, you have got to try these fun mermaid bath bomb cupcakes or unicorn bath bomb cupcakes–they’re such fun to make and so cool to use!
Cupcake Bath Bombs
Here at Ruffles and Rain Boots, we have so much fun making bath bombs and homemade soaps, so when the kiddo asked for mermaid bath bomb cupcakes and unicorn bath bomb cupcakes, well, of course I hopped right on that! Not only are cupcake bath bombs fun for me to have in the bath, but if I can make some that make bath time more fun for her, well, I’m doing it, hands down!
Plus, these adorable cupcake bath bombs make the best gifts. And then you’re giving the gift of relaxation–how cool is that?! If you’re ready to make the most fun bath bombs you’ll make this year, let’s get started.
All Mermaid Bath Bombs and Shower Fizzies
Before we get started, you might want to check out all of my mermaid bath bombs and sugar scrubs here.
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Tips to Make Mermaid or Unicorn Bath Bomb Cupcakes
- Be sure to let your cupcake bath bombs to dry fully before using them, because they’ll be fizzier. Generally, I recommend letting them dry for at least 24 hours or more if you live in a humid environment or it’s cold out.
- Always store your DIY bath bomb cupcakes in an airtight container until you’re ready to drop them in the tub. The moisture in the air can make them significantly less fizzy. One thing I like to do is store my bath bombs in a pretty air-tight container like an apothecary jar. Not only is this great for keeping the bath bombs ready-to-use, but it’s a really cute packaging if you plan to gift them!
- Mermaid Bath Bomb Cupcakes
- Stick with purple, pink, blue and shades in between for each of the primary colors of these bath bombs.
- Unicorn Bath Bomb Cupcakes
- Stick with yellow, green, purple–well, the whole rainbow for these awesome bath bombs.
How Do I Make Cupcake Bath Bombs?
I’m so glad you asked. Below is our written tutorial.
Bath Bomb Cupcakes
- 1 1/2 cups baking soda
- 1 cup citric acid (I like to buy in bulk on Amazon)
- 1/2 cup cornstarch
- 1/4 cup white Kaolin Clay (Find it on Amazon)
- 1/4 cup dead sea salts (Find it on Amazon)
- 1/4 cup coconut oil (Find it on Amazon)
- 2 teaspoons polysorbate 80 (Find it on Amazon)
- 1-2 drops of scented oil (I used "Rain" scent)
- 2-3 drops purple food colorant for Unicorn Bath Bombs or blue for Mermaid Bath Bombs
- 1/4 cup clear or white melt and pour soap base (Find it on Amazon)
- 1 tablespoon glycerin (Find it on Amazon)
- 1 tablespoon corn starch
- 3/4 cup whipped soap base (Find it on Amazon)
- 2-3 drops each of pink, yellow and light green soap colorant for Unicorn Bath Bombs or pink, blue and purple for Mermaid Bath Bombs
- In a large mixing bowl, whisk together the baking soda, citric acid and cornstarch.
- Add the coconut oil, Polysorbate 80 and scented oil then mix well. You may need to use your hands to crush lumps and make sure everything gets well mixed. The mixture is ready when it holds together like wet sand when you press it together in your hands.
- Add in your color. Start with 1-2 drops of color and mix it in. If you want a darker color, add 1-2 more drops at a time, mixing between.
- Fill each cavity of a muffin tin and press mixture into it firmly until the cavity is filled to the top.
- Allow the cupcake bath bombs to dry a minimum of 24 hours. If your climate is wet or cold, allow an additional 24 hours. My rule of thumb is that when it is hard to the touch, they are ready for the frosting! To remove from a metal muffin tin, gently run a knife around the outer edge and release.
- To make the whipped topping, combine whipped soap base, scented oil and glycerin and mix on low speed until fluffy.
- Melt the soap base in 30-second increments, stirring between each increment, until the soap is melted. Then allow the soap to cool for about a minute.
- Combine melted soap base and cornstarch on high speed for 1 minute or until it forms stiff peaks like a meringue. If the frosting is not stiff, add additional cornstarch.
- Divide the whipped soap mixture into 3 small mixing bowls and add one color to each bowl. Mix until the color is consistent throughout then place in the frosting bags.
- Frost cupcake bombs as with an edible cupcake. Add a few sprinkles on top. Allow to dry for 2-3 days then enjoy!
For more fun bath bomb recipes, visit Ruffles and Rain Boots!
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More Fun Bath Bomb Recipes You Might Like
- Rainbow Bath Bomb – You’re not going to find more fun and bright bath bombs that all kiddos will adore!
- Christmas Cupcake Bath Bomb – My first cupcake bath bomb I made, this one is so cute and quick, it’s a perfect gift.
- Glow in the Dark Bath Bombs – Epic does not cover how awesome these bath bombs turned out. You must make them. MUST.
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