You are done! To tell if the egg is perfectly cooked, cut one in half. There should be no grey/green ring between the yolk and white, and the yolk should be cooked through and all the same colour of yellow. If you undercook them a little (as I did in this photo =P) next time you make them cook them for an extra minute. Finding the perfect time is the most difficult thing, and cooking time varies depending on your altitude (I am at sea level).