Use this recipe for perfectly cooked hard-boiled eggs. By adding a little vinegar and salt, the eggshell peels off so easily without tearing or sticking. I have been making them this way for years!
The addition of vinegar helps to soften the eggshell, making it easier to peel, while salt slightly increases the water's density and can also aid in sealing any small cracks. Always add eggs carefully to boiling water to prevent cracking; a slotted spoon is ideal. The immediate transfer to an ice bath is crucial: it halts the cooking process, preventing a gray-green ring around the yolk, and causes the egg white to contract, creating a slight gap between the egg and the shell, which significantly eases peeling. For truly perfect hard-boiled eggs, ensure your eggs are not ultra-fresh, as slightly older eggs tend to peel more easily. Adjust cooking time by a minute or two based on desired yolk firmness.