200g/7oz cherry tomatoes, halved
½ green chilli, or to taste, finely chopped
1 tsp coriander
fresh coriander, chopped
2 garlic cloves, finely grated
2cm/1in ginger, finely grated
1 small onion, chopped
1 yellow pepper, chopped into bite-sized pieces
black pepper, to taste
½ tsp Kashmiri chilli powder or paprika
pinch cinnamon
1 clove
½ tsp cumin
¼ tsp salt
1 tsp sunflower oil
¼ tsp turmeric
2 frozen mackerel fillets (or salmon or cod)