Step 1 / 7
boil
cold start, then 10 min off heat, then ice bath
eggs covered in cold water brought just to a boil, then killed the heat and covered — a rolling boil drives the whites tough and pushes iron and sulfur to the yolk surface, which is the grey-green ring. The ice bath stops that reaction and contracts the egg away from the shell so it peels clean, which matters here because a torn white will not dice.