Roasted red onions with basil

I can’t claim that this recipe is exactly Italian, but I came across red onions for the first time when I was in Italy so it inspired me. The flavour I add is very Italian though – fennel seeds. I use the basil more like a salad leaf here, rather than a garnish.

The ingredients are: red onions, olive oil, fennel seeds, salt, balsamic vinegar, fresh basil.