Cupcake Bath Bombs

DIY Cupcake Bath Bombs

  • Author: Foothills Mama


Super excited to share these glow in the dark cupcake bath bombs! They make great gifts and party favors.





Instructions For Cupcake Bath Bombs:

In a large mixing bowl, add the baking soda, citric acid, cornstarch, pink Himalayan Epsom salts, and kaolin clay. Whisk dry ingredients together. 

Add the coconut oil. 

Add the polysorbate 80. 

Mix in the cupcake scented oil. You may need to use your hands to break down any lumps and make sure everything is mixed in.  

Mix in 1-1/2 tablespoons of the green glow in the dark colorant and 2 teaspoons of the cosmetic glitter. 

Add the mixture into each cavity of the muffin mold until the mixture is packed in firmly. Allow to dry a minimum of 24 hours. 

Directions for Whipped Soap “Frosting”:

Add whipped soap base, polysorbate 80 and glycerin to mixing bowl. Mix on low speed until fluffy, or about 1 minute. Fold in cornstarch. Mix on low for 30 seconds. 

Melt your soap base in microwave safe bowl in 30-second intervals, stirring after each until melted. Allow to cool for about a minute. Mix in melted melt and pour soap base, scented oil, pink glowing colorant and glitter. Mix on high speed for 1 minute or until the mixture forms peaks, like when you make a meringue.  If your frosting is not stiff enough, add a bit more cornstarch and mix in. Repeat until the mixture is nice and firm. 

Add whipped soap into the piping bag. I use a larger tip than you would on a cupcake because the soap mixture is thicker than edible frosting. Frost cupcake bombs as you would an edible cupcake. 


These cupcakes are easier to make than ALLLL of the steps make it seem. 🙂 There are a lot of steps but I wanted to be as thorough as possible! 🙂

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to and affiliated sites. View our privacy policy.