How To Make Soap Crayons That Work (2021)

My daughter and I love to make soap together, and recently we wanted to try to make bath soap crayons.

After trying several recipes that I found on-line, I finally gave up and tried my own. At last, crayon soap that actually writes and is easy to make and clean up!

The trick is to use actual crayons in your soap.

All of the recipes that I found used food coloring and I could never add enough to get the soap to actually show up when drawing with it.

Crayons make the soap usable as a bath crayon and my daughter is able to draw as much as she wants.

Tools for making crayon soap

Ingredients for making soap crayons

For our soap, we use the melt and pour kind. Since my daughter is currently 5 years old, we will wait a few years before we start making soap with lye.

I love this soap, we have been using melt and pour soap for years, it’s so easy.

Just cut the soap up into 1-inch squares and melt in the microwave.

Start with 30 seconds in a microwave-safe container.

Stir gently, you don’t want to add bubbles. Depending on how much soap you are making you may need a few more zaps in the microwave.

I usually go in 15-second bursts after the first 30 seconds.

Crayons: We have a bunch of crayons in our house and this is a great way to reuse broken crayons. I add the crayons in with the melt and pour soap, before heating in the microwave.

Fragrance: This is my daughter’s favorite part. I am a big fan of the P&J Trading fragrance collections. Any essential oil will work and the possibilities are endless!

Molds: I have to admit I may have a silicone mold addiction. If I see a cute silicone mold while I’m out I usually end up bringing it home. I have also found many awesome shapes and designs on Amazon as well. 

Directions for making soap crayons

1. Cut your “melt and pour soap” into 1-inch cubes. For small molds, I use about 6-7 soap cubes per mold. If you want to make multiple colors in one mold then I would recommend using 3 cubes or use multiple molds. 
2. Chose your crayon color. Go ahead and take the wrapping off and break the crayon into smaller pieces.
3. Place cubes and crayon into a microwave-safe container, I like using a wide mouth mason jar.
4. Start your timer for 30 seconds. Check to see if your soap is melted.
5. You can gently swirl the soap in the container to help it melt. If needed place back in the microwave in 10-second bursts.
6. You don’t want your soap to boil over; one, it creates a mess, and two, it creates bubbles in the soap that can mess up your final product.
7. Add your favorite scent. I shake the essential oil bottle about 7-8 times or until the scent is strong enough. We love all of the holiday scents!
8. Gently stir your soap mixture until the color is fully incorporated and all the crayon pieces are melted and combined.
9. Pour into your molds. Do this part slowly and carefully. If your soap starts to thicken, put it back into the microwave for 10-second bursts until it is thin enough to pour again.
10. Allow the soap to harden. With the small molds and melt and pour soap this shouldn’t take too long. If you want to speed up the process, place your molds in the freezer. (make sure to have your molds on a surface like a cookie sheet or cutting board before moving them otherwise, your soap may pour out as you move them.)
11. Remove the soap from the molds by pressing them out from the back. 

In the video below you can see how to make crayon soap.

In the picture you see the end result when writing using the newly made soap crayons.

Now you know how to make soap crayons.

Have fun with your new crayon soap!