This dish comes from the heart and hands of my Aunty Geeta, who is a second mother to me in many ways. She has such a different way of cooking from Maa. Her dishes are sweeter and less ‘spicy’ – both are wonderful, but with prawns/shrimp the sweet gentility sings. The unusual flavour of this dish comes from the combination of English mustard and tomato. In India generally we cook prawns/shrimp with the shells and heads on as this adds a natural stock. Try it like this if yo