DIY Bath Bombs

There are few things that I love more than a nice, long soak in a hot bath. When I was younger, I would spend hours each weekend submerged in the bathtub reading (and subsequently damaging) Beverly Cleary’s Ramona Quimby series. 

As an adult, a bathtub is one of the few dealbreakers I have when renting an apartment. I chose my first apartment in Montreal purely because of the gorgeous clawfoot tub. I was somehow able to overlook the fact that the apartment had a non-functional layout, only three electrical outlets, no natural light to speak of, and that it was on the ground floor of a decrepit building located in a seedy corner of downtown… I would come to regret my short-sightedness, but at the time, I only had eyes for the tub. It was antique porcelain and over 6 feet long. Perfection. To this day, I have never felt better about myself than I did stewing in that tub.

Bath bombs add a level of spa-like indulgence to any self-care ritual, but they typically cost $5-15 each, which adds up quickly. Fortunately, these fizzy, colourful treats are relatively simple to make at home. Moreover, the process of making bath bombs is a relaxing way to let your creative juices flow. With this basic recipe below, you’ll be luxuriating in a colourful, delightfully scented bath in no time. 


  • 1 cup baking soda
  • 1/2 cup citric acid
  • 1/2 cup Epsom salt
  • Colouring pigment* – optional
  • 1 tablespoon cream of tartar
  • 2 1/2 tablespoons almond oil – or melted coconut oil
  • 3/4 tablespoon water
  • 12-15 drops essential oil or soap fragrance of choice

*I used mica pigment powder because it’s a natural product. Mica powder comes in a variety of vivid colours and gives bath water a subtle shimmer. Food colouring is another non-toxic option that is more affordable than mica powder. 


  • Bath bomb mould
  • Mixing bowl
  • Measuring spoons & cups
  • Whisk
  • Spatula


  • In a medium bowl, mix all of the dry ingredients. Add as much or as little colour pigment to achieve the desired look. Whisk to combine.
  • In a separate small bowl, mix the wet ingredients.
  • Add the wet ingredients to the dry ones very, very slowly. It’s important not to add the wet ingredients all at once, or you will activate the citric acid used to create the fizzing effect. When the ingredients are thoroughly mixed, they should have the appearance and consistency of packing snow or wet sand. 
  • Fill each half of the mould, packing the mixture in slightly until it is overflowing. Press the halves together firmly. Let the filled mould sit for one minute. Lightly tap the mould and gently pull it apart to remove the bath bomb. Let the bath bombs dry for at least 24 hours before enjoying in the tub.

Once you have mastered this basic recipe, you can customize your bath bombs with different shapes, sizes, scents, and colours. Bath bombs are a fun indulgence, and they make a great inexpensive gift. Make them in batches to use for yourself or to share.

Happy bathing, folks! 


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