Heat 2 tbsp sunflower oil in a small saucepan and then add 1/2 tbsp black mustard seeds, 1/2 tsp whole cumin seeds, 1/2 large fresh red chilli, 1/2 tsp Shetland sea salt, 1/2 tsp chilli powder, 1/2 tsp ground coriander, 1/2 tsp garam masala5 whole curry leaves. Cook until the seeds start to pop.
Add 190 grams fresh ripe tomatoes, chopped, and cook for two minutes, until they begin to soften and reduce.
Add 170 grams Kheera cucumber, chopped, and cook for a further three or four minutes, until the cucumber begins to soften but still retains some of its crunch.
Serve.
Notes
The original recipe called for an unspecified quantity of water to be added with the tomato, but I found my tomatoes added enough liquid on their own, so I didn't add any extra.