I need to find a way to link the onion soup discussion to this thread.
I don't know about onion for sure, but I know Penzey's has garlic in many jarred forms, including granulated garlic, and suspect they might do granulated onion sans the salt, if that matters.
I use granulated garlic once in a while, generally last minute stuff. I'll miss it when it runs out.
my grandfather was a big fan of spanish onions
he grew his own, and would take a big onion, slice it into rings, and make raw onion sandwiches with sharp old cheddar cheese on rye