Preheat the oven to 180℃/356℉/gas mark 4.
Remove the chicken from the yoghurt marinade, scraping off as much of the yoghurt as possible. Keep the leftover yoghurt marinade for later.
Heat the oil in a large ovenproof pan, casserole dish or hob-to-oven pan. I prefer using a large cast iron pot for this.
3 tablespoons olive oil
Add the chicken to the hot pan. Fry over medium-high heat for 5–6 minutes on one side, then turn and fry for a further 3 minutes on the other side. The chicken does not need to be cooked through at this stage. You just want good colour on the outside.
Transfer the browned chicken pieces to a plate.
In the same pan, add the chopped onions, cumin seeds and cloves. Cook over medium heat for about 7 minutes, stirring often, until the onions are soft and golden.
200 grams chopped onion, 2 teaspoons cumin seeds, 6 whole cloves
Add the ground cinnamon, turmeric, nutmeg, chilli powder and ground coriander. Fry with the onions for 1 minute, stirring so the spices don’t catch on the bottom of the pan.
1 teaspoon ground cinnamon, 1½ teaspoon ground turmeric, ½ teaspoon ground nutmeg, ½ teaspoon chilli powder, 1 teaspoon ground coriander
Add the chicken stock and sugar. Scrape up the browned bits from the bottom of the pan with a wooden spoon or spatula. They add flavour to the sauce.
250 millilitre chicken stock, 1 tablespoon sugar
Let the stock simmer for 2–3 minutes.
Add the chopped tomatoes, leftover yoghurt marinade, bay leaves and salt to the pan.
1 tin chopped tomatoes - circa 400g, 3 bay leaves, 1 teaspoon salt
Bring the sauce to a gentle simmer over low heat, then remove the pan from the heat. Don’t boil it hard once the yoghurt has been added, as this can make the sauce split.
Place the browned chicken thighs on top of the sauce, along with any juices from the plate. Sprinkle a little salt over the chicken before baking.
Bake uncovered in the preheated oven for 45 minutes, or until the chicken is cooked through, tender and the sauce has thickened slightly.
The sauce should look rich and slightly reduced, not watery. If it still looks too thin, remove the chicken to a plate and simmer the sauce on the hob for a few minutes until it thickens.
Sprinkle with chopped coriander, if using, and serve hot with rice or naan bread.
handful chopped coriander for serving