Ash-e doogh
Ash-e doogh is the summer and autumn soup of Ardabil and the Azeri north-west of Iran, cooked in big pots for family gatherings and sold in bowls in the bazaars. Rice and chickpeas are simmered in tangy yoghurt with handfuls of dill, coriander, spinach and mint, and the soup is topped with crisp fried onion and dried mint. It is creamy and sour, never heavy. The usual mistake is stopping stirring: the yoghurt splits into grains if left to boil alone, so stir in one direction without stopping until it comes to the boil. Chef's tip: beat a spoonful of rice flour into the yoghurt before heating; it stabilises it and keeps the soup silky.
























