Halloween Bath Bomb Recipe With Surprise | Boo!

Here’s a bath bomb recipe just for Halloween!

3 candy corn-inspired bath bombs

I’m obsessed with candy corn. In seventh grade, I had my first boy-girl party. My friend Judy and I lit little pumpkin candles and placed them around my living room. To avoid any conversation with the opposite sex, the ten of us in attendance spent the whole party awkwardly melting the bottoms of candy corns and building them into towers.  

Along with this sweet memory, candy corns hold a special place in my heart for other reasons. First, they feature my favorite colors—orange and yellow—and second, they take center stage at my all-time favorite holiday—Halloween.


Candy Corn


This is why I just had to develop a candy corn-inspired bath bomb recipe.

Aside from paying homage to my favorite candy, this bath bomb recipe includes a little surprise in the middle of each bath bomb.

Make these with the kids in your life for tons of crafty fun. 

I suggest reading through the directions completely to make sure you’ve got everything you need and know how to troubleshoot. Then grab your munchkins and get your Halloween bath bombs on! (And if you’re somewhat new to making bath bombs, check out How to Make Bath Bombs: The Ultimate Guide. I’ll walk you through everything you need to know–from ingredients to techniques–so that you’ll soon feel like a pro!)


Homemade Candy Corn Bath Bomb Recipe


Candy Corn Bath Bomb Recipe Card



Dry Ingredients for Candy Corn Bath Bomb Recipe


Dry Ingredients for Candy Corn Bath Bombs


Note: These are the basic ingredients for most bath bombs. So if you catch the bath bomb fever, you’ll use them again and again.

2 Cups Baking Soda

1 and 1/2 Cups Citric Acid (for extra fizz)

2 tsp Cream of Tartar (to hold bomb firm)

1 Cup Epsom Salt

1 Cup  Cornstarch

1 Bar Ivory Soap—Must be Ivory soap if you want the soap surprise to float on the surface of the bathwater.

Wet Ingredients for Bath Bomb Recipe


6 Tbsp Water

6 Tbsp Castor Oil

15 -20 drops per color, Orange and Yellow Soap Dye

1 and 1/2 tsp Cinnamon Bark Essential Oil


Mini Ghost Soap Mold and Ivory Soap


Silicone Mini Halloween Mold —Make sure you get mini molds (about 1.5 inches in length per shape) so the soaps will fit into the middle of the bath bombs.

Plastic Ornament Molds for Bath Bombs


Step 1: Make the Mini-Soap Surprises for the Middle of the Bath Bombs


First, you’ll make the Halloween mini soaps to insert into the middle of the Candy Corn Bath Bombs.  When the bomb fizzes away, your bather will get a fun surprise!

If you want the soap surprise in the middle of the bomb to float at the top of the tub, you’ve got to use Ivory soap and not some other brand. This is because Ivory is the soap that floats.

Other soaps will melt down better into a soap mold, but when the bath bomb explodes, the soap will sink to the bottom of the tub. Spooky!

So cut one bar of Ivory soap into 3 pieces and place into a microwave-safe bowl. Microwave about 30-40 seconds. Mix with a spoon.

Be sure to watch what happens to this soap as it melts. It’s super cool. If you’re working with little ones, put them up on a chair to take a quick look inside the microwave once you open the door. 



Let cool a little and press into mini-soap molds. The soap might heat unevenly, so if working with young children, be sure the soap is safe to touch or you do this part yourself.


I tried both a skeleton soap mold and one with ghosts. The skeletons came out better with more definition, probably because they were circle-shaped. The ghosts, on the other hand, had intricate cuts on the edges and these did not translate as well.

In any case, once you fill your molds, set them aside to harden for 15 minutes, while you make the bath bombs.

(Here’s an alternative way to make the soap surprise for the inside of the candy corn bath bombs: If you happen to have a mini-cookie-cutter in the shape of a pumpkin or ghost, you can simply use the cookie cutter to slice your ivory soap into Halloween-y shapes. Then you don’t have to bother melting the soap and putting it into molds. You’ll see that the soap is quite soft without any melting, so just cut it in half width-wise and you’ll have two thin bar-shaped pieces. Now then press the cookie cutter against each soap rectangle. Voila!)


Step 2: Make the Bath Bombs

fill soap molds

Combine all dry ingredients and whisk well. 

After that, divide the mixture evenly into three mixing bowls.  


Create the White Part of the Candy Corn


Combine 2 Tbsp of castor oil with 2 Tbsp of water and ½ tsp of cinnamon bark essential oil. (If you like a stronger scent, add more.) Mix well!

Add a bit of the liquid at a time to Bowl 1. Whisk, whisk, whisk. Then mix with your hands. 

arrow points to white part of candy corn

The trick to the perfect bath bomb is getting the mixture to be the right consistency: Not to wet and not too dry. Perform the Snowball Test, by scooping up some mixture and squeezing it into a snowball. If the mixture holds together, it’s just right. But if the mixture seems to be reacting and expanding once you place it in the mold, it’s too wet. And if the mixture falls apart like powdery snow, it’s not wet enough. Don’t panic if you’re mixture isn’t working out. Just be sure to read the Troubleshooting Section below.

As you probably noticed, your ornament mold has two parts. Fill one part of the mold halfway with the white mixture. Press the mixture down firmly so it is compact. It can help to press with the bottom of a small measuring cup. Also, run your finger around the outer edge of the inside of the mold to even it out.

Set aside.


Create the Yellow Part of the Candy Corn


Again, combine 2 Tbsp of castor oil with 2 Tbsp of water. This time add about 15-20 drops of yellow soap dye. Plus add ½ tsp of cinnamon bark essential oil. (If you like a stronger scent, add more.) Mix well.

arrow points to yellow part of candy corn

Add a little bit of the liquid at a time to Bowl 2. Whisk, whisk, whisk. Then mix with your hands. Do the snowball test and troubleshoot as needed.

Take the other piece of your mold and fill halfway with the yellow mixture. Press so it is compact and smooth out edges with your finger. Set aside.


Create the Orange Part of the Candy Corn


Three’s the charm! This is the last time you’ll get to do this: Combine 2 Tbsp of castor oil with 2 Tbsp water. This time add about 15-20 drops of orange soap dye. Plus add ½ tsp of cinnamon bark essential oil. (If you like a stronger scent, add more.) Mix well.

Add a little bit of the liquid at a time to Bowl 3. 

Whisk, whisk, whisk.

Then mix with your hands. 

Do the snowball test and troubleshoot as needed.

arrow points to orange part of candy corn

Let’s pause here for a moment of reflection: You may be wondering why we’ve only filled each of the globes halfway. 

Only true scholars of candy corn know the answer to that question, but I’ll give you a hint: Which color in the candy corn takes up the most space?

The orange part! This is why if you want to be true to the inspiration candy, you can make the orange the fattest stripe in your Candy Corn Bath Bomb.

At this point, each half of the globe mold is halfway full.  Now you can fill the rest of each half with the orange mixture. So you’ve got one piece of the plastic globe mold that is white with orange on top, and the other piece of the plastic globe mold is yellow with orange on top.


Step 3: Boo! Compress the Mixture and Add the Soap Surprise


Place a mini-soap surprise on top of one half of the mold. 

Mini soap on top of half a bath bomb

Add ¼ c additional orange bath bomb powder and compress both halves of the mold together, so the mini-soap ends up in the middle of your bomb. Again, you can use the bottom of a measuring cup to really press the powder down.

Pop Rocks?

Okay, don’t laugh but in this picture, I sprinkled Pop Rocks candy on top of my soap ghost. I wanted to see if it would create some kind of explosion when I dropped the bath bomb in the tub.

But surprise! My bath bomb was already so fizzy due to the citric acid, that the pop rocks didn’t make any difference at all. I guess you can’t improve on perfection. That’s why Pop Rocks are not included in the ingredient list. (That’ said, if you can find them, they’re sooo fun to eat!)

Overfill the Orange

You really need to overfill the orange to make sure you’ve got enough bath bomb mix to hold the two halves together. The two plastic halves of the globe should connect, and lock together. 

In addition, I find it helps to place the full plastic globe on the table and press down on the top for maximum pressure.

But sometimes, if I can’t get the two parts of the globe to lock together, I’ll just place a rubber band around the globe while it dries in the fridge.


Step 4: Refrigerate for 3 Hours


Put the full bath bomb molds into the refrigerator for 3 hours.

When I first started making bath bombs, they would seem dry after an hour. I couldn’t wait to see the result, so I hurriedly pulled off the plastic molds, only to discover that they weren’t thoroughly ready. As a result, chunks of the bath bomb broke off.

You need to allow the full drying time if you want the bath bombs to remain intact when you remove the molds. 

Alternatively, if there’s no room in your fridge, place the molds on a tray and leave them alone to dry out for 24 hours.


Melt into a Scary Fun Candy Corn Bath


Now it’s time to enjoy your bath bombs!

Fill the tub, throw one in, and watch the explosion. After that, slip into the water, close your eyes, and meditate on your favorite candy.

Bath Bomb Recipe Troubleshooting

As I already mentioned, the true key to an awesome bath bomb recipe is getting the mixture right. It’s like Goldilocks and the porridge. It can be too wet, too dry or just right. 


Too Wet

How do you know if the mixture is too wet? It’s literally exploding! You stuff it into the bath mold it expands and grows, grows, grows so that the two parts of the bath bomb globe mold will not fit together.

The other thing that can tell you the mixture is too wet is that it starts fizzing like crazy. (A little fizzing is expected.)

Either way, it’s easy to fix a mixture that’s too wet, by simply adding more baking soda—a little bit at a time—and then mixing with your hands. 

If the mixture is already in the mold by the time you notice that it’s expanding, use rubber bands around the mold to keep the two halves together.


Too Dry

You know the mixture is too dry if it will not pass the Snowball Test. In this case, mix equal parts water and castor oil—then add 1  teaspoon (of both combined) at a time. And whisk, whisk, whisk.


Just Right – Passes the Snowball Test

The Snowball Test will show you if you’ve got the right consistency. Your mixture will hold together, but it won’t expand when you place it into the mold.



A Word About Oils


Castor Oil

At first when I tried to make bath bombs I didn’t have castor oil, so I tried avocado oil and then olive oil. Neither of these worked, and my bath bomb powder didn’t hold together. Castor oil is really thick and I think that’s why it’s better. 


Cinnamon Bark Oil

If you have sensitive skin, then you might want to test a few drops of the oil on the inside of your wrist to be sure you don’t react. You also probably won’t want to add more than ¼ tsp per bath bomb.  

Tags: bath bomb, bath bomb recipe, bath bombs, candy corn, candy corn bath bomb recipe, crafts for kids, Halloween, Halloween crafts, Ivory soap


Shana Burg is a bath enthusiast, content strategist, and award-winning writer. She is the founder of bathtubber.com.

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