Baking Soda Modeling Clay

This is the best homemade modeling clay I’ve found.  It’s light, oh-so-soft, and has a texture similar to playdough.  And it even dries without flaking or crumbling!

Here’s what you’ll need:

2 cups baking soda
1 ¼ cup water
1 cup cornstarch
Optional sealer:  Shellac, Acrylic spray or clear nail polish 

Mix the baking soda and cornstarch in a saucepan.  Slowly add water into and stir over medium heat for 4 to 5 minutes.

It will thicken up pretty quickly.

Once it’s almost the same thickness as playdough, remove from heat and dump onto a clean surface. Cover with a dishtowel until cool.  Once cool, knead the dough until smooth and start forming the dough.

(Big Brother wanted to reenact the story of David and Goliath, so he chose to make five smooth stones.  Love that kid!)

Allow your creations to dry overnight before painting them. If you choose to seal your designs you can do so with shellac, acrylic spray or even clear nail polish!

I’ll be sharing our final creation later in the week, but until then I’ll leave you with this beaut…

Yep, I made it.

  • Share This Post:
  • Share This Post on Facebook
  • Share this Post on Twitter
  • Email this Post
  • Yum
Filed Under: Crafts, Recipes


    • says

      I honestly don’t know for sure. I THINK it should keep if you put it in a ziploc and squeeze all the air out. But like I said, I’m not 100%. :)

  1. Wendy says

    Thanks for this awesome recipe! I made it today but didn’t have quite enough baking soda and it turned out a bit runny. I just kneaded flour into the dough to get the right consistency and it worked too. We also added a bunch of pumpkin pie spice mix and the whole house smells great and it turned the dough into a beautiful earthy orangish brown. It is packed tightly in plastic and still fells malleable.

  2. Christine says

    Thank you Jenae for ALL of your wonderful ideas and real, raw posts! The Lord is using you to bless and encourage many….especially me! We are getting ready to make our golf tee turkeys!

  3. says


    does this work for taking handprints as a gift to grandparents? I am hoping to do this as a Christmas gift, but wasnt sure how it would hold up. Once you seal it is it pretty well hard like ceramica?


  4. says

    Hi! Thanks for posting this! I used it with many of my classes and they loved it!

    I saw it on lots of Pinterest boards, and all the recipes were the same. Since
    yours was the one I actually read and used, when I made a blog post using
    this recipe, I linked back to you.


  5. Chantel says

    Hey! I was wondering if this is good to make impressions in, too? We’re talking about dinosaurs in my preschool class and I would like to make “fossils” to dig up in our sand box this week.
    I look forward to hearing from you!

  6. Lynn says

    Teacher here. Thanks for sharing this idea. I saw it on Pinterest. I wonder if you know whether this would work as a base for a totem pole? I am thinking about whether I could make the clay into logs, let it dry, and have kiddos carve on it, maybe using a nail as a tool. Will the clay hold together but yield to carving do you think?

  7. Brenda says

    Can we put food dye in it, so it will have a color? When it would dry, would the color stay the same, or would it be white a flakey? Or, would we have to wait for them to dry to paint them green? We are making advent wreathes and just wondering! Thanks!

  8. says


    Thank you so much for this recipe. It has been our go-to dough since you posted it. My kids have food allergies, so most dough is not safe for them. This dough safe and terrific!

    Thanks, again!

    Amy :)

  9. says

    I should also say that one of my children is allergic to corn starch, so we use arrowroot powder as a substitute. It works perfectly! :)

Leave a Reply

Your email address will not be published. Required fields are marked *