Directions

1. Heat 1 tbsp of the oil in a deep saute pan or wok. Tip in the onions, then fry over a medium-high heat for about 12-15 mins, stirring occasionally, until a rich golden colour and the pan is sticky on the bottom. While they cook, chop the garlic and ginger. Make a slit down the length of each cardamom pod just deep enough to reveal the tiny seeds. Remove the onions from the heat. Transfer a third of them to a small blender along with the garlic, ginger and 2 tbsp water. Whizz together to make a paste that is as smooth as you can get it. Set aside.
2. Return the onions in the pan to the heat, add the remaining oil, cardamom pods and cinnamon stick, then stir-fry for a couple of mins. Stir in the chicken, ground coriander, 1 1/4 tsp of the garam masala, mace and black pepper, then stir-fry for another 2 mins. Reserve 3 tbsp of the yogurt, then slowly start to add the rest, 1 tbsp at a time, stirring between each spoonful. When all the yogurt has gone in, stir in the oniony paste and stir-fry for 2-3 mins. Stir in 150ml water, then the milk. Bring to a boil, then simmer, covered, for 20 mins, scattering in the chillies for the final 5 mins, by which time the chicken should be very tender. Remove the cardamom pods and cinnamon. The flavours mellow all the more if refrigerated overnight. When gently reheating, splash in a little water if needed to slacken the korma sauce.
3. Finish by stirring in the chopped coriander. Taste and add a little salt if you wish. Swirl in the reserved yogurt. Spoon the korma into bowls, scatter a few almonds over each portion with a sprinkling of the remaining garam masala. Serve the saffron rice on the side.