How do you hatch an enderdragon egg?

You can't hatch an Ender Dragon egg in Minecraft!

Here's why:

* Ender Dragon eggs are unbreakable and cannot be interacted with. They're purely decorative items.

* They are a unique item dropped only once. After defeating the Ender Dragon for the first time, you will receive one egg.

* There is no known method to hatch or use the egg in any way.

So, while the idea of raising a baby Ender Dragon might be cool, it's unfortunately not possible in the current version of Minecraft.