Chicken Thigh Curry with Toasted Spices
The difference between a fine curry and a flat one is almost always the spices. Pre-ground spice powder loses its edge within weeks of opening; whole spices, toasted in a dry pan until they smell of woodsmoke and then ground, taste like a different ingredient entirely. It adds ten minutes and one extra pan, and it is the single thing that makes this curry.
Chicken thighs are non-negotiable — breast dries out in a sauce, thighs stay succulent and their bones and skin enrich the gravy. The onions need real time to go soft and sweet and dark; rushing them is the other common mistake.
Serve with rice or warm flatbread, and something cooling — cucumber, yoghurt, or both.
Whole spices to toast
For the curry
Put all the whole spices in a dry frying pan over medium heat. Toast, shaking often, for 2–3 minutes until fragrant and a shade darker — do not let them burn. Tip into a mortar or spice grinder, cool for a minute, then grind to a coarse powder.
Season the thighs with salt. Heat 2 tablespoons of the oil in a large heavy pan over medium-high heat and brown the thighs well on both sides, in batches. Set aside.
Lower the heat to medium, add the last tablespoon of oil, and cook the sliced onions with a pinch of salt for 12–15 minutes, stirring often, until soft, sweet and deep golden brown.
Stir in the garlic, ginger and green chilli and cook for 2 minutes. Add the ground toasted spices and the turmeric and cook, stirring, for 1 minute until they smell rich and toasty.
Pour in the chopped tomatoes and cook for 5 minutes, mashing them down, until thick and split with oil. Return the chicken with the water or stock, bring to a simmer, cover, and cook for 25 minutes.
Uncover and simmer for a final 5 minutes to thicken the sauce, if needed. Taste for salt. Stir through most of the coriander and serve scattered with the rest, with rice or flatbread.
Spices: If you truly can't toast and grind, use 2 tablespoons of a good garam masala plus 1 teaspoon each ground cumin and coriander. It won't be quite the same but it'll be good.
Heat: The chilli here gives a medium warmth. Deseed it for mild, add a second for hot.
Ahead: Better the next day. Cool quickly, refrigerate, and reheat gently with a splash of water.
Bone-in vs boneless: Bone-in skinless thighs give the best flavour; boneless are quicker and easier to eat. Reduce the simmer by 5 minutes for boneless.