Put your eggs in a bowl and cover them with about one-half inch cold water. Heat the bowl until the water is simmering and cook like this for seven minutes, using a timer. As soon as the timer dings put the bowl into the sink and turn on the cold tap, allowing the water to overspill. It doesn't need to be galloping; a steady but vigorous flow will do. After a minute turn off the tap and leave the eggs in the cold water for another couple of minutes, or until they are cold enough to hold comfortably.