Get an egg
Make sure it's hard by spinning it. If it spins fast, it's hard.
Peal the egg shell
Put the egg in a mug and fill it with regular temperature water.
Place the mug in the center of the microwave.
Set the microwave to 1.5 minutes. Be careful when you touch the mug afterwards, it will be hot. Bon appetite! :-)
If the egg is not hot enough in the center, then next time add 30 seconds more to the microwave time. Or leave the egg in the mug, with the now hot water, for a min or two, to souk the heat some more.