Pour some cornflour into a large plastic bowl or container and squeeze in some hair conditioner. Add a few drops of food colouring then let you little ones mix everything together with their hands and start kneading it until it forms into a doughy ball. You might need to help them out with this, but it is pretty easy once everything is formed together.
If your playdough is too dry and crumbly, add in more hair conditioner. If you find that it’s too sticky, it needs a bit more cornflour. Add in a few more drops of food colouring until you get your desired shade and remember to store the playdough in an air-tight container so it can last longer.