One of my pet peeves is having a hard boiled egg that has green on the yolk. I would almost prefer to have the yolk under done rather than over done. I use to know how to do this, but have lost the piece of paper with the method. I think you put the eggs in the pot, cover with water, bring to boil and take off burner. But what amount of time do you leave them in for. Last time I did it, it was a bust. Can someone help, please?