Separate the egg white from the egg yolk and leave the egg yolk for use.
Take a small bowl, a layer of salt at the bottom of the bowl, put the yolk on the salt, and lay a layer of salt on the yolk.
Sprinkle a little water on the salt surface and keep it moist
Put it in the shade and eat it in two days.
Clean the salt on the surface of the egg yolk before eating.