1.Boil 1L of water in a fairly deep saucepan (the eggs should be completely submerged in the water), then remove from the heat.
2.Add 200ml of water and the eggs from the refrigerator to the saucepan, then cover. Let it cook for 12 minutes for a medium-sized egg and 13 minutes for a large one.
3.Place the cooked egg in cold water.
