Sugar Plum Fairy Cupcake Bath Bombs

Who doesn’t love the Sugar Plum Fairy? We’ve captured our love of all things purple and fairies in these gorgeous cupcake bath bombs that we have dubbed, The Sugar Plum Fairy Bath Bomb. Learn how easy it is to make these bath bombs yourself at home.


In a forest like setting with dark wood background, branches and moss, sits a slice of of a tree. On the slice is a purple cupcake bath bomb with multi-colour soap icing topper. Overlay words say Sugar Plum Fairy Cupcake Bath Bomb

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I’ve always loved the magical idea of fairies. With their tiny bodies and iridescent wings, flitting about with curious little natures. We always joke when weird things happen in our home, that it must be the mischievous house fairies playing.

One of our favourite book series is Fablehaven by Brandon Mull. In it humans need to drink a special milk to see the fairies, otherwise they look like regular insects. What an incredible idea that there is this magical world, just beyond our senses. It’s no wonder we love fairies around here.

Of course we are also obsessed with making homemade bath bombs and coming up with new recipes all the time. So this week are bringing together our love of fairies, bath bombs and all the purples things into this incredible cupcake bath bomb!

Isn’t it absolutely stunning?

On a dark wood background sits two tree slices. Between the slices are small white flowers. On the slices are purple cupcake shaped bath bombs with whipped icing soap toppers in pink, yellow and green. Overlay text says Sugar Plum Fairy Cupcake Bath Bombs

Fairy or Unicorn BATH BOMBS?

So as we were making these, the kids felt they could also be unicorn bath bombs with all the colours. I still prefer fairy, but if you like to think of them as unicorn bath bombs, go for it!


Making cupcake bath bombs is a two part process. First we need to make the bath bomb “cupcakes”. Then once they are set and hardened, we need to add the whipped soap icing tops.

First up, let’s make the bath bombs

Cupcake Bath Bomb Supplies

1 1/2 cups baking soda
1 cup citric acid
1/4 cup white Kaolin Clay
1/2 cup cornstarch
1/4 cup dead sea salts
1/4 cup coconut oil
2 teaspoons polysorbate 80
1-2 drops of Rain scented oil
2-3 drops purple soap colorant
Colourful candy sprinkles
Spray bottle of rubbing alcohol
1 large mixing bowl
1 microwave safe measuring cup
Muffin tin – silicone

Sodium Bicarbonate, Baking Soda, by Pure Organic Ingredients, 2 lb, Highest Purity, Food Grade, Eco-Friendly PackagingCitric Acid (4 oz) by Pure Organic Ingredients, Eco-Friendly Packaging, All-Natural, Highest Quality, Pure, Food Grade, Non-GMOAnthony's Organic Cornstarch (2lb), Gluten Free, Vegan & Non-GMO100% Natural ,Pure, White Kaolin KR Cosmetic Grade/ Personal Care Kaolin Clay Fine Powder Made in USA (8oz)Minera Natural Dead Sea Salt, 5lbs Bulk - Fine GrainViva Naturals Organic Extra Virgin Coconut Oil, 16 OuncePolysorbate 80 (Solubilser) - 500gP&J Trading Nature Set of 6 Premium Grade Fragrance Oils - Forest Pine, Ocean Breeze, Rain, Fresh Cut Grass, Sandalwood, Bamboo - 10ml12 Color Bath Bomb Soap Dye - Skin Safe Bath Bomb Colorant Food Grade Coloring for Soap Making Supplies, Natural Liquid Soap Colorant for DIY Bath Bomb Supplies Kit, Slime, Crafts - with InstructionsSJ European LFGB Silicone Muffin Pan Set, 2-Pack, 12-Cup, Large Cupcake Pan, Best Food Grade Egg Muffin Tin Baking Silicone Molds, Non-stick & BPA Free


How to Make Cupcake Bath Bomb Bases

In a large bowl combine all the dry ingredients: baking soda, citric acid, clay, cornstarch and dead sea salts. Combine by stirring gently. Citric acid can be a bit irritating, especially to kid helpers, if it becomes airborne. So work it together gently and make bath bombs in a well ventilated area.

Use a microwave safe measuring cup and melt the coconut oil until it is liquid. Add polysorbate 80, scented oil and soap colourant. Mix.

Add the wet ingredients to the dry ingredients and mix together with your hands. Use disposable gloves if desired.

Once the mix holds forms like wet sand it is the right consistency and you are done mixing.

If the mix is not dark enough, add another drop or two of colourant and mix well.

Pack the muffin silicone molds, making sure you pack it tightly and fill to the top.

Let it set for 24 to 48 hours until hard in a warm, dry place.

Once they are hard, remove from the silicone molds. Sometimes I find it helpful to leave them to set up for one more day outside of the molds. You are now ready to ice them!

Now Let’s Make the Multi-Colour Icing topper

Whipped Soap Icing Supplies

1/4 cup clear or white melt and pour soap base
1 tablespoon glycerin
1 tablespoon corn starch
3/4 cup whipped soap base
2-3 drops each of pink, yellow and light green colorant
Tri color frosting kit
1 large mixing bowl
3 small mixing bowls
Electric mixer

Goats Milk - 2 Lbs Melt and Pour Soap Base - Our Earth's Secrets100% ORGANIC ULTRA CLEAR TRANSPERENT GLYCERIN Soap Base by Velona | Melt & Pour all Natural Bar For The Best Result | Size: 5 lbSoap Expressions 8lb. Whipped Soap BaseWilton Color Swirl, 3-Color Piping Bag Coupler, 9-Piece Cake Decorating KitWilton Color Right Performance Food Coloring Set, Achieve Consistent Colors for Icing, Fondant and Cake Batter, 8-Base ColorsKitchenAid KSM150PSER Artisan Tilt-Head Stand Mixer with Pouring Shield, 5-Quart, Empire RedHamilton Beach 62682RZ Hand Mixer with Snap-On Case, White


Whipped Soap Icing For Cupcake Bath Bombs

Add the whipped soap base, scented oil and glycerin to mixing bowl. Mix on low speed until fluffy. This will take approximately 1 minute.

Melt the regular soap base in microwave safe bowl in 30-second intervals, stirring after each until melted. Allow it to cool for about one minute.

Add the melted soap base and cornstarch to the whipped soap bowl. Mix everything together at 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.

Divide the whipped soap into 3 small mixing bowls. Add pink color to one bowl, yellow to another and light green to the last bowl. Start with 1-2 drops of color and mix it in. If you want a darker color, add 1 or 2 more drops and repeat until you get the color you want.

Add one of each color frosting to each of the 3 piping bags. Hold the bags together so all sides of the tips meet. Finally, add a frosting tip and the coupler.

Holding all three bags tightly, frost the cupcake bombs as you would an edible cupcake. Add a few candy sprinkles to finish them off.

Pro Tip! After 2-3 days, your frosting will harden enough that you can easily remove it from the cupcake and use the soap once you have enjoyed your soak in the tub with your bath bomb!

Sugar Plum Fairy Bath Bombs set on a woodland type setting with branches and moss. The Cupcake Bath Bomb is purple with multiple colours in the whipped icing soap topper which has colourful sprinkles.

Why Bath Bombs Fizz

One of the reasons the kids love making and using bath bombs is the spectacular fizz! The science behind that fizz is a fascinating chemistry lesson and a wonderful way for kids to learn some real world applications.

So what is the science? It’s an acid-base reaction. Yup, just like our beloved baking soda and vinegar reactions.

In the case of bath bombs the acid (Citric Acid) and base (Baking Soda or Sodium Bicarbonate) are in a dry powder form. The reaction won’t begin until water is added. If your bath bombs are puffing up or prematurely erupting, it’s because water is being added somehow. Even water in the air from a humid day can trigger the reaction.

Another important ingredient in bath bomb making is the emulsifier, polysorbate 80. It can be tempting to leave it out, but remember, oil and water don’t mix. Bath bombs have oil in them. That oil and all the colours will end up floating on top of the water in a scummy layer sticking to the bather and the bath tub. No one likes needing a shower after a bath or having to scrub down the bath tub. So make sure you don’t skip the emulsifier!

Plus you can use the Polysorbate 80 to make magical Moon Dough quickly and easy!

I hope these Sugar Plum Fairy cupcake bath bombs bring a little magic to your day!

On a dark wood background sits two tree slices. Between the slices are small white babies breath flowers. On the slices are purple cupcake shaped bath bombs with whipped icing soap toppers in pink, yellow and green. Overlay text says Sugar Plum Fairy Cupcake Bath Bombs


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