• 2 cups cornflour
• 1 cup cold water
• 4 cups boiling water
• a sprinkle of lux flakes

Put the cornflour in a bowl and mix in the cold water. Once the cornflour is mixed in well add the boiling water 1 cup at at time, mixing after each cup. Your mixture should have gone from a watery consistency to a nice thick paste. Sprinkle some lux flakes into the paste and mix till dissolved. These make the paint easier to clean up later. If your mixture didn’t thicken then try adding it to a pot and heating it up a bit more. Your water may not have been hot enough.