Perennial Garlic or Onion?

           

I found this clump of alliums when clearing a bed. To the best of my knowledge they've never flowered but it was obviously an allium from the smell of the leaves - which are flat, like garlic and leeks, not hollow like onions. I actually thought it was an ornamental allium.
When I dug them up, I didn't expect to find these bulbs and they're a reasonable size for eating too - I know because I've just eaten one raw! The bulb was splitting into 2 cloves and tasted like a mild garlic. 
The skins have a reddish tint. 
If anyone can identify them, I'd be grateful. I'm going to split the clump and replant somewhere random!!

I have no idea. Without your explanation, just going on photos.  I’d of said onions. Amazing what you find in the garden. I found watercress yesterday   .

They look like something I have on my plot. My best guess for mine is spring onions that went over winter and bulbed up with a purple tinge. I'm too afraid to just chomp one to find out what it tastes like though...

Elephant garlic forms small offsets around its edge, which if left will eventually grow into full sized EG after a few years. The mild garlic taste and flat leaves would lead me to believe its related to EG?

Have you ever had Elephant garlic which you have just left in situ Veggie, if so this could be the progeny.

All Alliums are edible so it won't poison you, DJ.
My problem with it is where its planted - in the front of a herb and flower bed. If I'd known it was an onion/garlic/leek I would have planted it elsewhere. Its too random a spot, even for me!!

Elephant garlic forms small offsets around its edge, which if left will eventually grow into full sized EG after a few years. The mild garlic taste and flat leaves would lead me to believe its related to EG?

Have you ever had Elephant garlic which you have just left in situ Veggie, if so this could be the progeny.

I leave lots of EG in situ - but nowhere near these! The leaves are a lot thinner/softer than EG too - though that may be because they're overcrowded and probably have been for several years.