Tamarind Lamb and Mushroom Cobbler

This recipe is based on khoresht–e-gharch – mushroom casserole – a perennial favourite in my mother-in-law’s family. It has to be said that mushrooms are not one of the quintessential Persian ingredients – as you travel east out of Europe you will find that they are used less and less (until you get to the Orient, where they have plenty of indigenous, exotic varieties), so I suspect that the Persian mushroom eating habit was introduced from Europe. This recipe sees the khor