Vegetarian curry with Indian cheese, tomatoes and peppers (paneer jalfrezi)

INGREDIENTS

• 3 tbsp vegetable oil
• 1½ tsp cumin
• 1 dried Kashmiri chilli
• 5cm/2in piece fresh root ginger
• 3 small onions
• 1 fresh green chilli
• 1 red or yellow pepper
• 1 green pepper
• 1 tsp salt
• ½ tsp ground turmeric
• 1½ tsp Kashmiri chilli powder
• 250g/9oz paneer
• 3 tomatoes
• 1 tsp wine vinegar
• ½ tsp toasted ground cumin
• ¾ tsp garam masala