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How To Make Oobleck with Just 2 Ingredients! (Easy Oobleck Recipe)

If you’ve ever wanted to learn how to make oobleck at home, à la Bartholomew and the Oobleck by Dr. Seuss, this oobleck recipe tutorial is for you! Super inexpensive and a fun kitchen science experiment…

playing with an easy 2-ingredient oobleck recipe

How To Make Oobleck

Though our spring break isn’t until the end of March, my kids do have the day off school today for a teacher inservice day. Having learned my lesson after the overabundance of snow days we’ve had so far this year, I knew I needed to have a project ready that would engage them and maybe even teach them a thing or two.

My first thought was to whip out my tried-and-true salt dough recipe, but they wanted something new and different. So we decided to make oobleck! And yes, it was MESSY, but it was oh, SO much fun… Every one of my five kids, from my 6-year-old right up to my almost 12-year-old, wanted a chance to play with it.

For those of you on a budget, you’ll be thrilled that this oobleck recipe is super inexpensive. In fact, you probably have everything you need for a basic oobleck mixture sitting in your pantry already!


oobleck ingredients and book

What Is Oobleck?

While most Dr. Seuss fans are probably familiar with oobleck, for those of you that aren’t, I’d encourage you to pick up a copy of Bartholomew and the Oobleck. As with so many of his books, this is a lighthearted, fun read, with a really great moral at the end.

To give a quick overview, there’s an old king who wants something new to fall from the sky, so he calls on his royal magicians. They create “oobleck“, a green substance that rains down. The result is a sticky, gooey, gloppy green mess that covers the entire kingdom — and its residents. Along the way readers realize that just maybe we should be careful what we wish for. Thankfully, the king’s young pageboy, Bartholomew, saves the day by urging the king to say some simple magic words.

If you’re going to show your kids how to make oobleck, picking up a copy of the book is an excellent complement to the project!

how do you make oobleck

Oobleck Ingredients & Equipment

You really only need two ingredients to make this oobleck recipe — cornstarch and water. If you want to add color, I recommend using tempera paint versus food coloring to prevent any staining.

As far as equipment, you’ll just need a large mixing bowl. No spoon necessary! And possibly an inexpensive plastic tablecloth to cover your workspace. Things are about to get a little sloppy…

making oobleck at home with just two ingredients

How Do You Make Oobleck?

Okay, I warned you this was going to get messy… Both you and your kids will probably end up covered in goo, but it’s the best kind of mess — one that’s loads of fun, yet easy to clean up and washes out of clothes without a trace.

How do you make oobleck? Well, you won’t be able to mix it easily with a spoon. You’ll have to get your hands in there and work with it until it’s the right consistency. But trust me on this, you’re going to have just as much fun as the kids!

teaching kids how to make oobleck and playing with it in a ceramic bowl

Easy Oobleck Recipe

The really cool thing about oobleck is that it’s neither a liquid nor a solid. It’s actually a suspension (known as a non-Newtonian Fluid) and will behave like either, depending on the amount of pressure you apply.

Squeeze it in the palm of your hand, and it will feel like a solid ball… But when you open your hand, it will flow over and between your fingers like a liquid. It’s really the most bizarre feeling — YOU’LL want to play with it for hours, too!


how to make oobleck 2-ingredient recipe

2-Ingredient Oobleck Recipe

Yield: 1 1/2 cups oobleck
Prep Time: 5 minutes
Total Time: 5 minutes

If you’ve ever wanted to learn how to make oobleck at home, à la Bartholomew and the Oobleck by Dr. Seuss, this oobleck recipe tutorial is for you! Super inexpensive and a fun kitchen science experiment...



  1. While it will take a little experimentation to get the proper consistency, a good starting place is to mix 1 1/2 cups of cornstarch with 1 cup of water. I added 3 tablespoons of green tempera paint to color the suspension, but you can use more or less or leave it out altogether.
  2. Mix the ingredients using your hands, adding more cornstarch or water as necessary. Note that you may need to use more cornstarch if you live at a high altitude. You’ll know you’ve got the right consistency when it feels similar to honey or molasses, yet “tears” when you drag your fingers across the surface.
  3. Store the oobleck in a covered container to play with again. The cornstarch and water may separate, but you just simply need to work them back together.


I recommend covering your work/play area with an inexpensive plastic tablecloth to make cleanup easier!

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How much did you LOVE this recipe?

Please leave a comment below or share a photo on Instagram with the hashtag #unsophisticook!

glitter slime recipe without borax

4-Ingredient Rainbow Glitter Slime Recipe

If your kids love this oobleck recipe, they’ll also adore this easy glitter slime recipe. It’s easily created with just four simple ingredients and NO borax! Package it up in a plastic container for a great DIY gift idea that will provide hours of fun.

I’d love to see how your oobleck turns out… Tag me @Unsophisticook on Instagram or use the hashtag #Unsophisticook so I can check it out. Enjoy!


Saturday 10th of April 2021

this is such a thing to make and is so wonderful

Amy J.

Tuesday 2nd of February 2021

Can you use regular washable paint?

Tara Kuczykowski

Tuesday 2nd of February 2021

Hi Amy -- I've never tried acrylic paint in it, so I'm not sure if it would change the consistency or not. If you don't have tempera paint, a few drops of food coloring to tint it will work. Don't use more than a few drops to prevent staining.

Summer W.

Saturday 14th of November 2020

My son and I did this. Don't give up if its not the right consistency. Just keep adding cornstarch. We had so much fun. Thanks for the super easy recipe.

Tara Kuczykowski

Saturday 14th of November 2020

Thanks for sharing, Summer! You're so welcome, and I'm so glad to hear you guys had fun playing with it.


Friday 6th of November 2020

I don't have the ingredients.


Wednesday 3rd of March 2021

@Lillian, why are you here then

Joshua Spencer

Sunday 15th of November 2020

@Lillian, then you can’t make it :(

Julie Trofimov

Friday 11th of September 2020

Me and my mom tried to make it but is was water wee did everything on the list but it is not oobleck

Tara Kuczykowski

Saturday 12th of September 2020

Hi Julie! It sounds like you just need to continue to add more cornstarch until it reaches the proper consistency.

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