Preheat the oven to 180°C/gas mark 4
Roast the aubergine in the oven or in a tandoor until completely soft. Peel away the skin and roughly chop the flesh
Heat the oil in a saucepan, add the onion seeds and sauté until they crackle. Add the ginger and green chilli and sauté over a medium heat until the ginger is golden
Add the onions and cook for 3–5 minutes, or until soft. Add the chopped tomatoes and stir in the powdered spices
Mix through the aubergine flesh and peas and heat through. Taste, adjust the seasoning as needed and serve with a garnish of coriander cress
