Double blazers steam

Can you can onions in a pressure canner? - large pressure canner

We have a lot of onions in our garden, and what with them. We used in sauces and spaghetti sauces, and even onion rings a few times. But I wonder whether we can, like carrots and green beans in a pressure cooker.

I tried to search online and can not really find the truth canned onions. And while canned. Can we do it with the greatest? Can they be cut into slices as you would for spears, and they can? It is the color of the issue of the Onion) (red or white or yellow onion?

Even if someone is a recipe for French onion soup cans in large quantities? I have many recipes for making portions of soup and I do not know if this would be a good idea to double, triple or quadruple the recipe. Thank you in advance for any help!