How to make slime

Crafts & Activities / 4 October, 2017 / Nanny Anita

How to Make Slime

Make sure you follow our sensory board on Pinterest for more ideas, and don’t forget to pin the Pin at the bottom of the page. 

For the best part of this year I have been trying to find the perfect slime recipe. A large number of them require borax powder, which is controlled substance by the EU so very difficult to get hold of in the UK, or liquid starch, which again is very hard to get hold of because it also contains borax. I looked into ones that were made from other things, but they never turned out as nicely as I hoped. It was beginning to look like I was going to have to admit defeat on it, but as luck would have it I had the perfect recipe appear on my Facebook page completely out of the blue! We have made this slime a few times now and I can hands down say that this it is perfect and you can get hold of the stuff very easily.

You will need:


  • PVA glue – The Elmer’s school glue bottles works perfectly; you can get it on
  • ½ tsp of Bicarbonate of Soda
  • Foaming soap (optional)
  • Food colouring
  • ¼ cup of shaving foam
  • Optrex Eye Drops*
  • Mixing bowl
  • Spoon

* You need to make sure the eye drops have Boric Acid or Sodium Borate in it, because guess what; that is also a type of borax!  Shhh don’t tell anyone.

If you are using an Elmer’s School glue bottle you will need the whole bottle (which is about 4FL OZ/ 118 ml). If you are using just a large bottle of PVA glue then you will need about 118 mls.

Add ½ tsp of Bicarbonate of Soda, if you want a larger batch of slime, then you will need ½ tsp for every 118mls of glue. In other words, you will need ½ tsp for every bottle of Elmer’s school glue you use.


Add a few drops of your food colouring and mix everything really well so that all the Bicarbonate of Soda is mixed in.


This next step is optional; add about 5-10 squirts of foaming soap. We used Paddy’s bathroom hand stuff. It is important that the soap is foamy and not a gel or this won’t work. The soap just adds to the sensory experience and makes it bubble and pop.


Add ¼ cup of shaving foam and mix it together.

Now start to add some of the eye drops. Add a little bit at a time and stir well. The mixture should start coming together to create a dough. Keep adding the eye drops until the mixture doesn’t stick to your hands. Don’t add too much or the slime will become hard.


Once you have reached the perfect consistency take it out and kneed it for a bit.

Then it is ready for it to be played with.


We found that this slime is incredibly fluffy and stretchy to begin with; it was like playing with a giant melted marshmallow. However over time it changed from being really fluffy to really silky smooth, it was still just as stretchy though. As long as you keep it in an airtight container this slime will last for ages.

Super stretchy!

Super stretchy!

YC and EC LOVE playing with slime, it is something I am asked to make with them over and over again. Take a look at the Flubber we made a few years ago. I promise you, once your little ones have made and played with slime they will want to do it again and again.

Of course YC and EC set a kitchen to cook their slime into yummy food.

Pin for later:

Super fluffy and stretchy slime made using EYE drops!

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