How long does it take for eggs to become hard-boiled?

The time it takes to hard-boil eggs depends on the size of the eggs and the desired level of doneness. Here's a general guideline:

For small eggs:

* Soft-boiled: 3-4 minutes

* Medium-boiled: 6-7 minutes

* Hard-boiled: 8-10 minutes

For large eggs:

* Soft-boiled: 4-5 minutes

* Medium-boiled: 7-8 minutes

* Hard-boiled: 10-12 minutes

Here are some tips for perfect hard-boiled eggs:

* Use cold eggs: Eggs that are cold from the refrigerator will cook more evenly.

* Add eggs to boiling water: Don't add the eggs to the water until it's reached a rolling boil.

* Cook for the appropriate time: Overcooked eggs will have a rubbery yolk.

* Immediately place the cooked eggs in an ice bath: This will stop the cooking process and make the eggs easier to peel.

Remember: These are just general guidelines. The best way to find the perfect cooking time for your eggs is to experiment and see what you prefer.