At last I have learned how to boil eggs and save gas . Put required number of eggs into a pan with cold water put a lid on and bring to boil . As soon as you have a rolling boil turn the gas off and remove the pan from heat . Leave for 3 minutes if you like a runny yolk and soft white , 4 minutes for runny yolk and almost setting white ,5 minutes for soft yolk and set white which is how I like it . For hardboiled eggs leave for 15 minutes . This applies for large size eggs . Pop the eggs into cold water to stop further cooking . We use this method on the boat because we do not like the galley to get too hot in a hot climate and to save gas . I think the eggs taste better when cooked this way as well .