Today I also did another experiment. I recycled my onion for another round (hopefully). If you want an endless onion supply allegedly alls you have to do is grow an onion normally. When it comes time to harvest the onion you have to cut out the bulb
Beneath the onion there is this, the bulb. I read that once you plant it, a new onion will grow. The outer layers you had to cut in order to get to the bulb can be eaten normally after they are properly cured.
If my memory serves me right......if you take the stalk and plant it you can get green onions. Again though.... time will tell. updates in due time