Step 1

Heat the oil a large saucepan over a medium heat. Once hot, add the cumin seeds and fry for a minute, or until aromatic. Add the onion and a pinch of salt and cook for 5–6 minutes, or until the onion is soft and translucent. Add the garlic, chilli flakes and ginger and fry for a further 3 minutes.

Step 2

Add the chickpeas, tomatoes and sweet potato to the pan. Add enough water (approximately 500ml/18fl oz) to cover the chickpeas and sweet potatoes and bring to a simmer, stirring to mix everything together.

Step 3

Cover with a lid and simmer over a medium–low heat, stirring now and again, for 25–30 minutes, or until the potatoes are soft and beginning to break apart and the sauce has thickened. Top up with a little more water during cooking if needed.

Step 4

Meanwhile, cook the rice according to the packet instructions. Season the curry with salt and pepper. Serve immediately with the rice.