Chicken with Spring Onion, Chilli and Greek Yoghurt

The accompaniment borrows from the idea of tsatsiki and all those Middle-Eastern yoghurt salads; I have my friends Lucy Heller and Charles Elton to thank for it. I haven’t put cucumber in this recipe, but sometimes I do. Coriander is, funnily enough, easier to come by than mint these days (although mint is certainly the traditional herb to use here) so you can use either of them. The point is to have a cool, pungent accompaniment to the tender, but not strongly flavoured, poultry. You can f