Created in 2010, the DIY Bath Bomb Cupcake video on Soap Queen TV is our most popular video to date. With almost 1 million views, it’s easy to see why this project is so popular. Who doesn’t love bath bombs and cupcakes?
After 7 years, the Bath Bomb Cupcake Kit was ready for a refresh. The kit now includes the new Fine Silver Rainbow EcoGlitter and the popular Electric Lemonade Cocktail Fragrance Oil for a fruity scent. The kit also includes newly designed instructions that are easier to follow.
This kit comes with enough ingredients to make one batch of six bath bomb cupcakes. They make fantastic gifts – just make sure the recipient knows they are bathing and not eating!
Bath Bomb Cupcake Kit Includes:
Cupcake Silicone Mold
20 oz. Baking Soda
8 oz. Citric Acid
6 oz. Sodium Lauryl Sulfoacetate/SLSA
2 oz. Avocado Oil
2 oz. Meringue Powder
0.5 oz. Electric Lemonade Cocktail Fragrance Oil
0.2 oz. Cream of Tartar
6 oz. Witch Hazel in Spray Bottle
0.2 oz. Fine Silver Rainbow EcoGlitter
1 Rosy Pink La Bomb Colorant
1 1M Frosting Tip
1 Disposable Plastic Decorating Bag
1 Dropper
1 pair of Gloves
- 20 oz. Sodium Bicarbonate
- 8 oz. Citric Acid
- 6 oz. Sodium Lauryl Sulfoacetate/SLSA
- 2 oz. Avocado Oil
- 2 oz. Meringue Powder
- 0.5 oz. Fragrance Oil
- 1 tsp. Cream of Tartar
- 4 oz. Powdered Sugar (not included in kit)
- 1.5 oz. Distilled Water (not included in kit)
- Witch Hazel in Spray Bottle
- Fine Silver Rainbow EcoGlitter
- Rosy Pink La Bomb Colorant
- Cupcake Silicone Mold
- Frosting Tip
- Disposable Plastic Decorating Bag
- Dropper
- Gloves
- Add all the citric acid and baking soda into a large mixing bowl. Use your fingers to break up any clumps or push the powders through a sifter.
- Using the dropper, add 7 ml of the fragrance oil and about 6 drops of the colorant to the mixture. Add as many drops of colorant as you would like to reach your desired color. Mix the colorant and fragrance in thoroughly, breaking up any clumps with your fingers.
- Use one hand to spritz the mixture with the witch hazel and the other to mix the ingredients. As you spritz the witch hazel, check the consistency. The ideal texture is similar to wet sand and should hold its shape when squeezed together in your hand. If it’s too dry, continue to spritz the mixture with the witch hazel. Make sure to spritz different areas as you mix.
- Once the bath bomb mixture has reached the right texture, fill each cupcake mold cavity with the mixture. Press it firmly into each mold until full. Slightly mound and then smooth the top of each cupcake with your fingers.
- Set aside to harden and begin preparing your frosting.
- With an electric mixer, blend together all of the meringue powder and distilled water until smooth and clump free. Then, add 4 oz. of powdered sugar, 1 tsp. cream of tartar, and all of the avocado oil. Mix together. Finally, add all of the SLSA to the mixture. Be very careful - it can be very irritating if it becomes airborne and is inhaled. Use a large spoon or spatula to fold it in first. Then once it's mostly incorprated, mix with the electric mixer on low and gradually increase the speed.
- Using your dropper, add 7 ml of the fragrance oil and a few drops of colorant. Mix well with your electric mixer until you get a smooth but stiff frosting. You can add more water or powdered sugar to adjust the consistency as necessary.
- Cut the tip of the decorating bag (about ½ inch) and place the frosting tip firmly inside. Fill the frosting bag and squeeze any air pockets out from the top. Wipe any loose powder off the top of the cupcakes. Begin frosting your cupcakes. Have fun experimenting with different piping techniques.
- Sprinkle a pinch of the EcoGlitter on top of the frosting as desired.
- Once all the bath bombs are complete, set them aside in the mold and allow them to dry for at least 3-4 hours or overnight.
- Remove the cupcakes from the mold, drop into a hot bath and enjoy!
I do trust all the ideas you’ve offered for your post.
They’re very convincing and can definitely work.
Nonetheless, the posts are very brief for starters.
May you please lengthen them a little from next time? Thanks for
the post.
Hello, I was wondering if someone could put a soap frosting on top of the bath bombs instead? So people could use the top as a soap after dissolving the bomb itself in the bath. Thoughts?
It would be difficult to get it to stick properly, and it may set off your fizzing reaction a bit where they make contact, but give it a try and see if you can get it to work. It’s a great idea! You could always package the two together in their own individual packaging as well.
This was such a fun kit and the fragrance is so delicious! However, the frosting part of the design takes way too long to dissolve. I finally had to break it up with my fingers to speed it along. Is this normal? I’ve never had any bath bomb or bubble bar do that before. Is there a way that it can be prevented? Thanks for any help!
The best way to dissolve the frosting is to break it up under a running faucet. That will help it bubble as well.
How do you measure in oz? I’m new to making bath bombs, and the other recipes I’ve used (recipes that have failed lol) have used measuring in cups, tsp, tbsp, etc.. thanks! Excited to try this recipe, have heard great things about Bramble Berry!
Ounces are a weight measurement, so you place a container on a scale, zero it out, and pour your ingredients in. This scale works well: https://www.brambleberry.com/Bramble-Berrys-Perfect-Scale-P3684.aspx
Is SLSA hard to measure since it’s lighter than air? When measuring SLSA in all recipes should I be shooting for weight or volume?
SLSA can be a little tricky to work with since it is lighter than air but you will still want to measure by weight. We also recommend using a mask while working with it to help keep out particulates. It also helps to gently spoon it in to keep it from clouding.
Find some suggestions for working with SLSA in this Bath Truffle video on Soap Queen TV:
https://www.youtube.com/watch?v=1x-KOubMx10
Does the meringue powder or powered sugar make the bath Water sticky?
In our tests we didn’t notice a lot of stickiness – the meringue and sugar are diluted in quite a bit of water. If you notice any, it’s easy to rinse off the skin.
im unable to order 🙁
Were you able to get your order placed? Is the website working for you?
What do you do with the top of the cupcake does it dissolve?
E Naturals
It dissolves and also bubbles because of the SLSA, which is a foaming agent: https://www.brambleberry.com/Sodium-Lauryl-Sulfoacetate-SLSA-P5244.aspx
Can these be shrink wrapped? I’m going to be shipping them to some friends.
Yes, you can shrink wrap these cupcakes. They dry to a firm texture, but to be extra careful you’ll want to package them with peanuts or bubble wrap to prevent any damage. Get more tips on shipping products here: https://www.soapqueen.com/bath-and-body-tutorials/tips-and-tricks/beginners-guide-to-packing-shipping-handmade-beauty-products/
Hello! thank you so muck for sharing this. I was hoping you could help me with this question….. I dont like using SLSA… it irratates my skin. is there any other product that i can use that you carry or dont that I can use? I know their are a few different powdered things that are similar but im not sure if its ok. Im excited as i have the other stuff already. I bought the slsa from you all too but im not for it as I said.
thank you all so much for your time and hard work
We haven’t found an alternative to the SLSA that bubbles as well in the tub. Without the SLSA in the frosting, it will just melt rather than bubble. You can leave it out of this recipe, I would recommend reducing the amount of oil and water to start with.
There are other ways to add pretty designs to your bath bombs that don’t require SLSA though. Find inspiration here: https://www.soapqueen.com/category/bath-and-body-tutorials/bath-fizzies/
Can I substitute the avacado oil for sweet almond oil? I have it already on hand.
Yes, sweet almond oil feels similar to avocado oil so it’s a good substitute.
Sweet almond oil: https://www.brambleberry.com/Sweet-Almond-Oil-P3205.aspx
can you use coconut oil instead of avocado oil? Also, is there any substitute for SLSA?
Coconut oil is solid at room temperature, so it will change the consistency of the frosting. Instead we recommend another liquid oil like sweet almond or sunflower.
Sweet almond oil: https://www.brambleberry.com/Sweet-Almond-Oil-P3205.aspx
Sunflower oil: https://www.brambleberry.com/Sunflower-Oil-P3208.aspx
As for the SLSA, we haven’t found a substitute that works as well. We recommend it for best results.
These bath bombs are so cute! I just made my first bath bomb (really simple one) and I’m hooked, looking for more ideas and I love you site.
There are so many fun ways to decorate your bath bombs – I think you’ll really enjoy trying them out. 🙂
Lovely videos , would like to know specifically about the frosting if there is a substitute for merengue powder and cream of tarter( for vegan customers ) ( even if it’s for soap bombs ) and what’s the best way to get them to really harden in a super humid climate as well as frizz in water . Thank you so much in advance .
The meringue and cream of tartar in this recipe give it a fluffy consistency that’s good for piping and help it harden, so without them the frosting remains soft. We haven’t found a good alternative for either, so we recommend them for these cupcakes.
There are other ways to add pretty designs to your bath bombs though. Find inspiration here: https://www.soapqueen.com/category/bath-and-body-tutorials/bath-fizzies/
How can I make these without sugar? My daughters are super prone to yeast infections and I don’t want to spur that on with sugar in the bath water. I’m not saying its bad, just bad for them 🙂
The sugar in this recipe helps the frosting harden, so without it the frosting remains soft. We haven’t found a good alternative for the sugar, so we recommend it for these cupcakes.
There are other ways to add pretty designs to your bath bombs though. Find inspiration here: https://www.soapqueen.com/category/bath-and-body-tutorials/bath-fizzies/
Just wondering, how long does it take for the frosting to completely dry? I am happy that the frosting is still holding its shape, but after 24 hours, the frosting is still soft to the touch.
With more water, the cupcakes can take a few days to dry. They dry best in a cool, dry place. If you have a fan or a dehumidifier, you can use those to help speed up the process a bit.
Thanks Kelsey. One more question, what is the shelf life of the frosting? if all the ingredients expire in a year, such as the meringue powder, etc. will adding vitamin E prolong the shelf life of the oils and help from going rancid?
Have a nice day
We recommend using these bath bomb cupcakes within 6 months for best results. The ingredients are good for a year, but after 6 months the bath bombs can dry out or absorb moisture from the air and not fizz as much. You can add vitamin E at 1% if you like. Then, store them tightly wrapped in a cool, dry place so they stay fresher longer.
I’m going to have to try these. Bath bombs are difficult for me but if I can get the frosting down, then I can have cupcake bath bombs!!
These are fun to make, hope you get a chance to give them a try.
Hi,
Finally the frosting worked!! the recipe is amazing!! after so so many failed tries and when I was about to give up on bath bomb cupcakes, the frosting worked. yayyy
I just needed to add more water and voila.
Thank you so much.
Awesome, glad to hear that!