Purée 38.4 g ginger to a fine paste using a small blender or food processor. Transfer to a bowl and combine thoroughly with the marinade spice and 0.3 g salt. Rub this mixture evenly over 1200 g chicken, cover, and refrigerate for 4 hours.
Warm 67.5 g vegetable oil in a heavy-based pan over medium heat. Add the whole spices for the oil along with 1 teaspoon mustard seeds and 4.3 g urad dal, frying for about 1 minute until the seeds crackle and the chillies deepen in colour.
Stir in 15–18 g garlic, followed by 150 g onion, and sauté for roughly 4 minutes until soft and lightly golden.
Toss in 240 g tomato and cook for 2 to 3 minutes until softened.
Add the marinated chicken, all its marinade juices, 3 whole red chillies, and salt to taste. Raise the heat to high and fry vigorously for 8 to 10 minutes until the meat is well browned.
Cover with a tight-fitting lid, lower the heat, and simmer gently for 10 to 15 minutes, giving it an occasional stir, until the chicken is cooked through.
Take off the lid and scatter over 1 teaspoon black pepper before serving.
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Chicken
Turkey thigh
Use 100% of the weight, cut into equivalent bone-in or boneless pieces. Simmer for an extra 5 to 10 minutes; flavour and texture are very similar.
Use about a third of the weight (0.5 g ground for a 2.5 cm piece), stirred in with the ground spices rather than fried whole, since the powder burns quickly.
Use 15% to 20% of the weight (about 1 g for every 5 to 6 g fresh cloves). Whisk into sauces; gives a savoury, toasted garlic flavour without raw pungency.
Use 80% of the weight, finely shredded and browned slowly with a pinch of asafoetida. Replicates the bulk and natural sweetness in gravies without allium.
Use 40% to 50% of the fresh tomato weight mixed with a splash of water. Imparts a deeper red colour, thicker sauce, and slightly sweeter cooked flavour.
Steep a tiny pinch (0.1 g per 2 g turmeric) in 2 tbsp warm water; use to match the rich golden hue. Contributes an aristocratic, honeyed floral flavour rather than earthy bitterness.