Step 1

Mix the turmeric, salt and 3 tbsp water in a large non-metallic dish, then add the chicken pieces. Rub all over the chicken, cover and chill overnight, or leave at room temperature for 30 mins.

Step 2

Meanwhile, make the spice paste. Soak the dried chillies in hot water for 20 mins until soft. Drain, then mix the chillies and other ingredients together in a processor or blender until smooth.

Step 3

Heat the oil in a deep wok or large, heavy-based saucepan. Fry the chicken in batches for 5 mins until golden, turning halfway through. Drain the chicken on kitchen paper. Carefully remove half of the oil to a heatproof container, then add the spice paste to the remaining oil in the wok.

Step 4

Fry the paste for 5 mins, then return the chicken to the pan, followed by the coconut milk, lemongrass and lime leaves. Cook for a further 5 mins, then stir in the stock powder, sugar and tamarind paste. Simmer gently for 1 hr 30 mins-1 hr 40 mins until the chicken is falling off the bones.