Here's a recipe, just like grandma used to make it.
For general starch:
1 tbspoon of corn flour
1 tspoon of salt (to prevent bugs getting to fond of chewing your beautiful things)
1 littre of water
Mix it all in a pan, stirring constantly let it boil (it will become more transparent). Mix it up with the rinsing water....
Here's a problem: in Brazil we normally use washing machines that are vertical, allowing us to open the lid and mix it with the rinsing water. In England however, they all have little circular side doors... And there's no way I can open them.
For strong starching (when you really want them stiff): instead of 1 tbspoon of corn flour, use 2.
Also, if you want it a bit starched (like men's shirts) but not too stiff, you can prepare the mix, let it cool off and put it into a spray bottle, spraying the shirt or whatever you want while ironing.
Pics http://happyhomemaker88.files.wordpress.com/2007/11/washing-machine.jpg
http://user.img.todaoferta.uol.com.br/R/Q/EM/PY3WI5/1244433346169_bigPhoto_0.jpg

