by Matt Tebbutt
1 tsp cumin seeds
1 green mango, finely chopped
1 green chilli, finely chopped
2cm/¾in piece ginger, peeled and finely chopped
2 tsp caster sugar
1 bunch fresh coriander, chopped
pinch salt
Dry fry the cumin seeds in a pan until aromatic. Place the seeds and all the other ingredients into a food processor and blend until smooth.