Right out of the fryer.
Here is an appetizer we had a few weeks ago. Even Kat, who isn't an onion fan, loved them. One large onion made enough for the three of us. You could whip up some kind of spicy mayo dipping sauce for them if you like, but we prefer to eat our onion strings "nekkid".
I cut the onions into julienne strips instead of rings, but otherwise, the recipe credits go to The Pioneer Woman Cooks.