My future mother in law bought ‘a Change of Appetite’ by Diana Henry and decided it wasn’t for her.

I took the book off her hands – and made this:

Basically you steam some leeks, make a yoghurt sauce (which also contains Dijon mustard and garlic) and dust it with Sumac.

Personally I’d halve the garlic and the mustard. The leeks get a little lost otherwise.

Definitely a keeper