2 Ingredient Homemade Goop (or Ooblek)

Play recipe - goop (or ooblek)Homemade Goop is so quick and easy to make. It can get messy though, so you’ll want to put a plastic tablecloth or towel underneath where you’re playing. Or better yet, take the fun outside and embrace the mess!

Goop, otherwise known as Ooblek, has a bizarre consistency. Sometimes liquid, sometimes solid. The consistency changes if you try to drag your fingers or a spoon through it slowly or quickly. If you try to pick up the solid mixture from the bottom of the bowl, it immediately melts through your fingers. But, if you work super fast you can grab a handful and roll it into a ball before it returns to a liquid.

Play recipe - Making a ball with Goop - goop (or ooblek)When we made goop again recently, Miss 5 insisted on wearing gloves initially as she wasn’t sure about the texture. She soon put those away though and enjoyed dipping her hands in the lovely cool mixture.

Mr 2 thought it’d be a great idea to give some of his plastic animals a ‘bath’.

Even though the mixture looks messy, it washed off easily from toys and hands.

This is a great recipe if you’re a gluten free family and your littlies like to taste test things!

Play recipe - Playing with Goop - goop (or ooblek)

For a little about the science behind the properties of Goop, check out the ‘What’s Happening?’ section under Questacon’s Cornfour Slime recipe.



2 Ingredient Goop (or Ooblek)


  • 2 cups cornflour
  • 1 cup water
  • Food colouring (optional)


  1. Place cornflour into a small mixing bowl.
  2. Slowly add water and mix until combined.
  3. Add food colouring (optional) and stir until combined.
  4. That's it! Now you're ready to play!


The mixture should last several days in an airtight container in the refrigerator. The cornflour will settle on the bottom of the container, so stir through before playing with it again.

When it is time to throw your goop away, be sure to put it in the bin rather than down to drain. Otherwise, the solid nature of the mix could leave you with a clogged sink!

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