Perfectly Centered Yolks in Hard-Cooked Eggs
Egg yolks rarely remain perfectly centered in the egg after packaging, shipping and storage. To help the chalazae hold the yolk in the center of the egg for the perfect hard-cooked egg, try this simple trick. Just make sure to plan ahead because you need a full 24 hours before cooking for this tip to work!
To help the chalazae do its job of centering the yolk, try this. Twenty-four hours before hard cooking, wrap two rubber bands around the carton to hold it shut. Then lay it on its side in the refrigerator. When you hard cook the eggs, voilá—perfectly centered yolks!