How do you make perfect hard-cooked eggs that can easily be peeled?
You might be surprised. Here are some miracle techniques.
We'll start with steaming. In the April edition of Cook's Illustrated magazine, the folks at America's Test Kitchen assert that it isn't the age of the eggs, after all, that causes the shell to stick like glue or peel straight off.
I'll hold off on the science for now and just share their new favorite method:
Fill a saucepan with 1 inch of water. Bring it to a rolling boil over high heat. Place a steamer basket inside, and carefully add refrigerator-cold eggs in a single layer. Cover, reduce heat to medium-low and cook eggs 13 minutes.
Shortly before eggs are done, combine 2 cups cold water and 2 cups ice cubes in a bowl. Using tongs or a spoon, transfer cooked eggs to ice bath. Let sit 15 minutes and then peel — or refrigerate to peel later.
The test kitchen got equally good peeling results from adding eggs to already-boiling water. I'm pretty sure this is what my mom did those many years ago. But somewhere along the line the culinary gods declared that you must start with cold water, and that method became the norm.
According to the folks at America's Test Kitchen, starting in cold water actually gives the outermost proteins of the egg white more time to bond with the membrane that lines the shell. Exposing the eggs quickly to hot steam or boiling water "denatures" those proteins, causing them to shrink, and in turn causing the white to pull away from the membrane.