Place the water in a pot on high heat.
Once the water gets warm, add half the amount of cornflour and stir it. Continue to stir until it thickens and becomes porridge. When you start seeing bubble, cover the pot and leave it to cook for 4 minutes on medium heat.
Remove the pot from the heat and add the rest of the cornflour. Stir it. As you mix in the rest of the cornflour it will become harder, almost like play dough, continue to mould it until all the flour is mixed in, and mash all the lumps.
Then spread it flat at the bottom of the pot as much as possible, cover, and put back on the fire on medium heat.
After 4 minutes, open and stir it up in order to turn it, and spread it back on the bottom, cover, and put back on the heat. Repeat twice.
Mould it in the middle of the pot into a nice round shape, and place on a serving dish.