Heat the oil in a casserole dish and fry the onion and peppers for 10 mins over a medium heat until the onion is golden brown. Add the garlic and spices, and fry for 1 min. Pour in the tomatoes, both cans of beans, 50ml water, then add the sugar and season. Simmer, stirring regularly, for 15-20 mins until thickened.

Meanwhile, cook the rice following pack instructions. Serve the chilli on the rice and scatter over the coriander. Top with a spoonful of soured cream, or guacamole, if you like.