Super Simple Slime

There are thousands of recipes for slime out there but for simplicity you can’t beat cornflour and you can also use it for a yummy cheese pasta for tea.

Fun outside with cornflour gloop

Ingredients for Science

  • Cornflour
  • Water
  • Food colouring (optional)

Ingredients for Supper

  • Cornflour
  • Butter
  • Milk
  • Salt
  • Nutmeg (optional)
  • Pasta shapes
  • Frozen peas (optional)
  • Cheddar cheese (optional)

One of the first things I learned to cook on the hob was white sauce and this recipe uses the method I was taught.


  1. Firstly make the slime…put approx. one cup of cornflour in a bowl
  2. Add half a cup of water and a few drops of food colour
  3. Carefully stir it and add a little more water to make the slime the desired consistency
  4. Whilst that entertains the kids, boil a kettle and cook the pasta according to the pack instruction
  5. Meanwhile, melt 40g of butter in a saucepan then remove from the heat
  6. With a wooden spoon, stir in around 25g cornflour and cook, stirring, for one minute
  7. Off the heat, gradually add 450mL milk, stirring to mix well (you can also use a whisk)
  8. Back on the heat, stirring all the time, cook until you feel it thicken and it coats the back of the spoon
  9. Add salt, pepper, nutmeg and grated cheese to taste and set aside
  10. Just before the pasta cooking time is up, add a handful of peas to the pasta water
  11. Drain the pasta and peas, add the white sauce and serve topped with more cheese if liked

Science in a Sentence

The mixture flows like a liquid but when you squeeze it feels like a solid; this is called a non-Newtonian fluid. You can find out more here.


If sauce stirring seems like too much hard work, there is a microwave white sauce recipe here on the SimplyBeingMum blog.

You can use leftover white sauce to make all sorts of dishes including lasagne, pasta/potato/vegetable bakes and fish dish.

You can also add food colour to the white sauce to make slime pasta 🙂

If you have the stuff, there are some great recipes for different types of slime on Science Sparks.

Leave a Reply

Fill in your details below or click an icon to log in: Logo

You are commenting using your account. Log Out /  Change )

Google photo

You are commenting using your Google account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s

This site uses Akismet to reduce spam. Learn how your comment data is processed.