1. To separate the egg white from the yolk, hold the egg over a small bowl. Take a knife and crack the egg across the middle without breaking it open.
2. Turn the egg so that it is standing upright in your hand. Remove the top half of the shell and hold it in your free hand. Most of the egg white will spill over the bottom half of the shell and into the bowl.
3. Then gently slide and drop the egg yolk from one half of the shell to the other, letting the egg white fall into the bowl underneath.
4. Do this until all the egg white has been collected in the bowl and only the yolk remains in one half of the shell. Transfer yolk to a container, cover and refrigerate or throw out.