The more eggs you have in the pan, the more water you should pour on top of them. Cover 6 eggs with at least one inch of water; for 7 to 12 eggs, cover with 2 inches.
The eggs should be perfectly cooked in about 10 to 12 minutes, this will however depend on how well done you prefer your hard-boiled eggs.
Alternatively, if you’re cooking a big batch of eggs, transfer them to a large dish of icy water with a slotted spoon.
This recipe for boiled eggs is sure to always deliver the right results as long as the instructions are followed correctly. If you’d like to see more ideas to cook eggs perfectly, check out this video recipe.
Find it online: https://blogchef.net/how-long-does-it-take-to-cook-an-egg/