Heat the oven to 200C/180C fan/gas 6. Tip the cauliflower, 1 tbsp of the oil, mustard seeds, cumin seeds, cardamom seeds and chickpeas into a large bowl, season generously and toss well. Spread over a roasting tray and roast for 20 mins, tossing halfway through, until the cauliflower is caramelised but retains a little bite.

Meanwhile, heat the rest of the oil in a shallow saucepan or wok. Fry the onions with a little salt over a medium heat for 10-15 mins, until golden. Tip in the garlic, ginger and spices and cook for 3-4 mins.

Pour in the coconut milk and stock, bring to a simmer, then tip in the roasted cauli and chickpeas. Simmer for 5 mins and add the lime juice. Top with the coriander and chilli, if using, and serve with your choice of sides.