Top and tail a couple of onions and cut into wedges - 6 to 8 per onion depending on size.
Carefully thread the wedges onto metal skewers. Lightly oil them and put on the barbeque until the outsides are properly charred.
The dressing is pomegranate molasses, vinegar (ideally from a jar of pickles but red wine vinegar will do at a push), olive oil, chopped parsley, sumac, chilli flakes and salt.
Slide the onions off the skewers and mix with the dressing. The flesh of the onions goes wonderfully sweet while the black edges have a touch of bitterness. It's really delicious.
I forgot the other onion dish on the table - pink onions. That's just a quick pickle: very finely sliced red onions with a generous pinch of salt and healthy slosh of lemon juice or white wine vinegar. Leave for an hour or so and they go a lovely vivid pink while the harshness of raw onion is softened.
They are great in a pitta with kebab/felafel/halloumi and assorted fixings.
Also great in tacos or burritos, but use lime rather than lemon juice.