I know, "everybody know how to make hard boiled eggs!" Except I can never remember how long to cook them. Plus, if not done just right, peeling is a mess. The info from Serious Eats seems reasonable.

Put eggs directly from refrigerator into boiling water. Cook for 11 minutes. Put eggs in ice bath for at least 15 minutes.

Stand by for Instant Pot recipes (coming soon!), which will have a different way to do this basic task.

Adapted from The Spruce Eats