That’s not enough. It’s also important that the water is boiling when one initially drops the eggs in, instead of them putting the eggs into cold water and bringing to boil.
I’ve used the drop in cold water, heat to boiling, then turn heat off. Leave eggs in hot water, set a timer for 12 minutes and once complete, transfer to ice bath in fridge.
That’s not enough. It’s also important that the water is boiling when one initially drops the eggs in, instead of them putting the eggs into cold water and bringing to boil.
Also: older eggs. The newer an egg is the more the shell will try and stick after hard-boiling.
I’ve used the drop in cold water, heat to boiling, then turn heat off. Leave eggs in hot water, set a timer for 12 minutes and once complete, transfer to ice bath in fridge.