Please help. My 4 yr old loves poached eggs with runny yolks. I've always done in a pan of water but recently I purchased some cast iron egg poachers to pop onto the pan or put into a pan. Downside is... I've no cooking instructions!!!! No matter how many times I use I seem to be 'cooking' for about 10 mins but still have runny white and solid yolk. I'm at a loss, can anyone help please.