This is something I've been wanting to try for ages.
... but we don't eat a lot of onions so it took a while to collect all the dry skins. I boiled them for an hour in a big pan and let it cool down overnight.
Then I wet and folded 'shibori-style' an old pillow case (it's either linen or cotton... it was part of mum's wedding trousseau but it has started to fray and couldn't be used anymore) and boiled that for an hour and let it cool overnight.
Not a fast process, but I enjoyed the slowness of it all. There was no pressure, there were no expectations.
Just delight at the results.
And the overwhelming desire of doing it again... maybe with wool next time!
Onion soup, anybody?