Cogs super silly slime
Prep time: 
Total time: 
This recipe is a fun way for children to make slime. It is perfectly safe to play with but it MUST NOT BE EATEN.
  • Borax powder (laundry section of the supermarket)
  • Guar gum powder (Health food store)
  • Glycerine (Pharmacy or supermarket)
  • Food colouring
  • Warm Water
  • Measuring jug
  • 2 teaspoons
  • Paddle pop stick for stirring
  • Mixing bowl
  • Squeezy plastic bottle (like a ketchup bottle)
  • Jar or ziplock bag for storage
  1. Prepare the borax solution by (Parent helper)
  2. Adding 250ml warm water to your squeezy bottle (label it borax)
  3. Add 4 slightly heaped tsps borax to the water
  4. Place the lid on and shake to dissolve
  5. Keep adding borax spoon by spoon until it will no longer dissolve.
  6. Set aside
  7. To make the slime (kids)
  8. Add 125ml warm water to your bowl
  9. Add 3 drops of food colouring to the water
  10. Add ½ tsp guar gum powder and stir until it dissolves (if it turns to a paste, start again not adding as much guar powder)
  11. Add 2 tsps glycerine to the solution and stir (lots of stirring).
  12. Add the borax solution while stirring. Keep stirring until it thickens.
  13. Keep adding borax bit by bit until the slime can bounce on a smooth surface and stretch.
  14. Have fun!
Recipe by Mrs D plus 3 at