Step 9: The Finished Eggs
When you peel the eggs, you'll notice that some of the colour has bled through the shell and has coloured the egg white. Don't worry, they are still perfectly safe to eat - more than I'd dare say about eggs coloured with artificial dyes. Despite the colour transfer onto the egg whites, there is no onion taste to the eggs.
Incidentally, I have tried using red onion skins for this as well, hoping to get red coloured eggs. Didn't get any red eggs though. Those eggs looked the same as the eggs I made with brown onion skins. Go figure.