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Home » Holidays » Halloween » Cauldron Halloween Bath Bombs

Cauldron Halloween Bath Bombs

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These Witch’s Cauldron Halloween Bath Bombs are super fun and SO easy to make! Topped with a generous layer of bubble frosting, these Halloween bath bombs will fill your tub with a bright and colorful layer of thick foam and luxurious bubbles! 

Witch’s Cauldron Halloween Bath Bombs

This post may contain Amazon or other affiliate links. I will receive a small commission from these sales at no additional cost to you!

Halloween will be here before you know it, and I couldn’t let the holiday pass me by without creating a super fun Halloween bath bomb to go along with it! These witch’s cauldron bath bombs are TONS of fun, and they would make a great Halloween treat for friends and family (especially if you package them up with our Candy Corn Soaps, too!)!

If you like these Halloween Bath Bombs, you might also like Easy DIY Candy Corn Soap, Vanilla Pumpkin Spice Sugar Scrub, and of course How to Make Bath Bombs.

Witch’s Cauldron Halloween Bath Bombs

Supplies Used to Make Halloween Bath Bombs: 

  • Baking Soda
  • Citric Acid
  • Sodium Lauryl Sulfoacetate (SLSA)
  • Cream of Tartar
  • Neon Green Mica Colorant
  • Polysorbate 80
  • Sweet Almond Oil
  • Fragrance Oil or Essential Oil of Choice (we recommend any of these Halloween scents!)
  • Cocamidopropyl Betaine
  • Witch Hazel
  • Plastic Cauldrons
  • Piping Bag & Tip
  • Witch’s Brew Halloween Sprinkle Mix

You can add any kind of sprinkles that you wish to the top of these bath bombs, but I HIGHLY recommend this Witch’s Brew Sprinkle Mix – it’s AMAZING! Bones, spiders, skulls, bats, lizards, witch’s hats, stars, glittery sparkling balls, and more – it’s the perfect addition to your Halloween bath bombs!

These cauldrons are filled with our favorite bath bomb mixture and are topped with a thick swirl of bubble foam that will fill your bathtub with a luscious layer of foamy green bubbles. Perfect for a soothing and relaxing bath after a long night of trick or treating!

As you’re making these bath bombs, note that any leftover bubble bath frosting can be piped into bubble bath cakes and topped with sprinkles. These bubble cakes will fill your tub with lots and lots of fluffy bubbles for a delightful bubble bath! I like to pipe mine onto a silicone sheet and set aside until they dry – approx 24-48 hours.

To use these cauldron bath bombs, you can simply toss the entire thing into warm bath water! If you wish to maximize the amount of bubbles in the tub, gently break off the swirl of bubble frosting and hold it under running bath water before adding the cauldron to the tub. Remove the plastic cauldron from the bath after the bath bomb inside has completely dissolved.

Witch’s Cauldron Halloween Bath Bombs

These Witch’s Cauldron Halloween Bath Bombs are super fun and SO easy to make! Topped with a generous layer of bubble frosting, these Halloween bath bombs will fill your tub with a bright and colorful layer of thick foam and luxurious bubbles! 
Print Pin Rate
Yields: 8 Bath Bombs

What You’ll Need:

  • 5 cups Baking Soda, divided
  • 1 1/2 cups Citric Acid
  • 3 Tbsp Cream of Tartar, divided
  • 2 Tbsp Sodium Lauryl Sulfoacetate (SLSA)
  • 1 tsp Neon Green Cosmetic Mica Colorant, divided
  • 2 Tbsp Sweet Almond Oil
  • 1 Tbsp Polysorbate 80
  • 1/4 cup Cocamidopropyl Betaine
  • Fragrance Oil or Essential Oil, optional (see notes)
  • Witch Hazel, in a fine-mist spray bottle
  • 8 Plastic Cauldrons
  • Witch's Brew Sprinkle Mix

Instructions:

  • In a large mixing bowl, thoroughly combine 3 cups baking soda, 2 Tbsp. cream of tartar, and SLSA. Stir in 1/2 tsp neon green mica colorant until completely combined.
  • In a small container, combine the sweet almond oil, fragrance/essential oil, and Polysorbate 80.
  • Stirring constantly, slowly mix the liquids into the dry ingredients until they are completely combined.
  • Add citric acid to the bath bomb mixture and stir until it is fully incorporated.
  • Test to see if the mixture is a moldable consistency – it should feel like slightly damp sand and hold together when squeezed in your hand.
    If the mixture is not quite wet enough to mold, spritz two to three times with a spray bottle of witch hazel and mix well. Repeat as necessary until the proper consistency is reached.
  • Fill each of the plastic cauldrons with bath bomb mixture, firmly packed.
  • To make the bubble frosting, combine 2 cups of baking soda, 1 Tbsp cream of tartar, and 1/2 tsp neon green mica colorant into a large bowl. Add a small amount of the cocamidopropyl betaine to the dry ingredients. Use a mixer to whip the ingredients together, slowly adding more cocamidopropyl betaine as needed, until the bubble frosting becomes a pipeable consistency.
  • Pipe a generous swirl of bubble frosting on top of each cauldron and top with witch's brew sprinkles.
  • Allow the bath bombs to dry completely for 24-48 hours depending on the temperature and humidity of your location.

Notes:

The amount of fragrance oil and/or essential oil that will need to be added to your bath bomb mixture will vary widely depending on what you are using. Generally, fragrance oil can be added by the 1/2 teaspoon until the desired amount of fragrance is reached. Essential oils are often far more potent than fragrance oil, so we recommend adding 15-20 drops of essential oil to each recipe to start and then adding more in 5 drop increments until the desired level of fragrance is achieved. 
Tried this?Mention @HiHomemadeBlog or tag #HiHomemadeBlog!

You May Also Like: 

Easy DIY Candy Corn Soap

How to Make Bath Bombs – all the tips and tricks you need for bath bomb success!

Spooky Halloween Spider Soaps

Don’t Forget to Pin these Cauldron Halloween Bath Bombs for Later!

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Filed Under: Bath & Body, Craft, Halloween, Holidays

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Hi, I'm Heidi!

Welcome! I'm SO glad that you're here! I'm a Northern California #BoyMom who loves sprinkled donuts, rainbows, and sharing quick and easy crafts and printables with you! read more here
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