Freezing onions - where have I gone wrong??

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Hello! Have recently become somewhat obsessed with freezing food after reading some threads on here, however am a novice and it seems I may have made my first error.

DP bought 8 onions at the weekend when we already had 4, so I chopped up 8 of them, freezer bagged them, removed as much air as poss and put them in the freezer. 3 days on they're kind of semi-frozen (still squishable) and the main problem is that whenever I open the freezer I am hit with an almighty onion-y stench. I had assumed frozen onion wouldn't smell...

Anyway, I have just made a batch of cookie dough to freeze for whenever we fancy a cookie, and now am worried I'm going to end up with oniony cookies... worst nightmare

Anyone know where I went wrong? I read I should have dried the onions in kitchen paper before bagging and freezing? Might just double bag the onions for now and hope that helps with the odour.

Thanks in advance!

Don't know about freezing raw onion sorry, I always saute mine before freezing them in little batches.

As for the smell, could you put them in tupperware?

No advice because I've got the same problem. I had too many onions so blitzed some up in the food processor and froze them in plastic boxes, now the freezer stinks. I am in a shared house at the moment so it's not just my food that may be contaminated! :(

Onions normally keep a fair while if you keep them in a cool dark place (not in fridge)
They don't keep so well this time of year because they have been stored for a long time.
I would make onion soup or other dishes and freeze those.

I have used bought frozen onions but have never frozen any myself.

I double bag mine and then put them in a lock and lock type plastic box. I usually spread them out on a tray a freeze them like that and then bag them.

Thanks all, good advice! The onions had started sprouting and so I didn't think they'd last much longer.

Might try cooking and freezing next time we have a glut. Also must invest in more tupperware.

Merci!