1½ tsp dried red chilli flakes
2 green chillies
1½ tsp ground coriander
1 tbsp chopped fresh coriander
½ cucumber, peeled and grated
1½ tsp dried methi (fenugreek) leaves
1 garlic clove, thinly sliced
1½ tsp garlic powder
5cm/2in fresh root ginger, thinly sliced
3 onions, finely chopped
salt and freshly ground black pepper
1 tomato, roughly chopped
400g/14oz long-grain rice, rinsed and soaked for 20 minutes
1½ tsp ground cumin
1 tsp cumin seeds
1½ tsp garam masala
1½ tsp ground ginger
1½ tsp ground turmeric
5 tbsp vegetable oil
1 tbsp butter
300g/10½oz plain yoghurt
4 chicken breasts (about 125g/4oz each), cut into small cubes