How to make Rainbow Heart Bath Fizzies-Bath Bombs

How to make Rainbow Heart Bath Fizzies-Bath Bombs

Wondering what to create to make your Valentine’s Day more Fizzie?

Today I am sharing these wonderful Rainbow Heart Bath Fizzies, perfect for Valentine’s Day or really any day.  Their fragrance is wonderful and soothing.  They would make great gifts for anyone, why not make them for Mother’s day, as well.  Hearts are good anytime!

I’ve been wanting to make bath fizzies (bombs seems to be the more commonly used word, but I really think “fizzies” is way more fun to say!) for quite awhile now, but just needed the inspiration and the drive to do it.  Searching on pinterest revealed quite a few ideas, but when I saw a big pink heart, I was ready to go.  Just had to make sure I had all the supplies and ingredients.

Supplies and ingredients:

  • 1 cup Baking soda
  • 1/2 cup Epsom Salt
  • 1/2 cup Cornstarch
  • 1/2 cup Citric Acid
  • 3 teaspoons water 
  • 2 teaspoons fragrance oil or 10-12 drops of essential oil
  • 2-5 drops food coloring or a few tiny scoops of gel food coloring
  • Silicone Heart Mold – large or small hearts
  • Rainbow Sprinkles

I first started with the large pink hearts, since that was my inspiration starting point.  I used red food coloring and peppermint essential oil.  I didn’t have any liquid food coloring like the recipe called for so I found out you can replace the 2-5 drops of food coloring for a few tiny scoops of gel food coloring (had a bunch leftover from when I was “super mom” who make a huge caterpillar cake for my daughter’s birthday, using a different color for every circle body part!)

Mix together water, essential or fragrance oil and food coloring.

food coloring bath fizzies

I probably had to do a little more mixing since I used the gel food coloring, it was a little chunky.  Liquid would probably work better, but I always like to use up what I already have.  I mixed all of the wet ingredients in a bowl and then mixed the dry ingredients in a separate bowl.

Whisk together baking soda, citric acid, cornstarch and Epsom salt.

mixing bath bombs

Then it was time to start mixing the wet ingredients into the dry ingredients.  I read that you are supposed to put in the wet ingredients only a little at a time.  Wow!  was that good advice.  Really you can only put a tiny bit of the wet stuff in at a time…fizzing starts right away and you have to mix mix mix really fast with your whisk.  Your arm gets tired, but the results are exciting, the mix feels really smooth when you are done.

bath bomb mixture

Once the mixture holds together when you squeeze some of it, you are ready to put the mix into your mold.  I used a big heart mold for this one that has 6 hearts.  I think I packed them a little too tight, as I was not able to fill the mold to the top.  But when they come out later – couldn’t tell the difference.

bath bombs push in mold

After I pushed the mix into the molds, really tight, but not too tight or the hearts will get a little deformed, I put rainbow sprinkles on top and pushed them down with a spoon so they get a little stuck in the mix.  This was fun for my daughter to do, she loved putting the mix in the mold and really loved adding on sprinkles.

We waited 24 hours and then popped them out of the mold.  They came out really easily and smelled great.


making bath bombs in a mold

We couldn’t stop at just making big pink hearts!  We got out a smaller mold and made two more batches.  This time I used cotton candy fragrance oil.  This smells really wonderful and when my daughter tried one in the bath, the whole bathroom was smelling good!

I had some blue liquid food coloring this time and I was right – mixes way better than the gel food coloring from a jar.

We actually made two separate batches, purple and blue, and when they were done I put them back in the mold for this picture. Each batch made about 21 little hearts in my 24 heart mold – packed full to the top.

We are planning on bagging these up for Valentine’s treats for school, with a cute little note telling them not to eat it, of course!

I just love these hearts.  Aren’t they so cute?

cute heart bath bombs

I hope you enjoy making your own bath fizzies and bring a little fizz to your Valentine’s Day!

Share your stories and ask any questions, leave me a comment!