Step 3: Remove a bit of Albumen
The best method we found was to poke holes in opposite faces of the egg.
Hold one side downwards, so the other hole is facing upwards.
Insert the syringe in the bottom hole, and pull back the plunger, carefully.
If you pull too hard, the egg will implode.
If you work the needle back and forth, you can find the sweet point where lots of egg insides come out.
You can also suck out the egg whites with your mouth.
Step 4: Inject Food Coloring
Some food coloring may splatter back out.
Step 5: Shaken, Not Stirred
Tetranitrate prefers to inject in globs, alternating colors on different sides of the egg.
If you cover the puncture holes with your fingers, you can swirl the egg pretty well.
Step 6: Boil
Takes longer (around 15 minutes of steady boiling) than normal, probably due to the increased liquid (decreased protein) content.