How long should extra large eggs cook to make them hard boil?

Extra large eggs should cook for 10-12 minutes for hard-boiled eggs.

Here's a general guideline:

* Small eggs: 7-8 minutes

* Medium eggs: 8-9 minutes

* Large eggs: 9-10 minutes

* Extra large eggs: 10-12 minutes

* Jumbo eggs: 12-13 minutes

Important Tips:

* Start with cold water: This helps the eggs cook evenly.

* Add salt to the water: This helps prevent the eggs from cracking.

* Don't overcrowd the pot: Leave space between the eggs so they cook evenly.

* Remove the eggs from the hot water immediately after cooking: This helps prevent the yolk from turning green.

* Immediately plunge the eggs into ice water: This stops the cooking process and makes the eggs easier to peel.

Enjoy your perfectly cooked hard-boiled eggs!