so here's the thing: You will need to choose what you use as a measure and more or less stick to it. I use a tumbler and I reckon that does two people. I'll call it a "measure" in the recipe
Directions
Measure a volume of rice and put it in a cold pan
Measure twice as much water and put it in the pan
Add a bit of salt if you are using it - i do
Bring to the boil and as soon as it boils, stir it and put it on the lowest possible heat with a lid on to trap the steam
Don't lift the lid, just ignore it for 20 minutes
Take the lid off and fluff it with a fork. If there is any liquid left leave it on the heat with the lid off to steam it off