Drop 500 g colocasia into a pot of boiling water and cook for 8–10 minutes. Drain, leave until cool enough to handle, peel, and cut into chunks.
Warm 26.4 g ghee in a heavy pan over medium heat. Sauté 24 g ginger, peeled and chopped, for 2–3 minutes, then add 12–18 g green chilli, de-seeded and chopped, along with the tempering spices and fry for 1 minute.
Tumble in the prepared colocasia, 2.9 g salt, and the ground spices. Pour in 250 ml water and simmer for about 10 minutes, until the liquid has evaporated and the colocasia is fully tender.
Take the pan off the stove, then fold in 30.6 g yogurt, whisked, and scatter over 2 g coriander leaf, chopped.
Use the same weight. Peel, cut into similar pieces and parboil for 5 minutes before adding; it cooks faster than colocasia, so add later and simmer 10–15 minutes. The dish will be less sticky and nutty.
Use the same weight. Peel and cut into chunks; it softens faster and turns sweeter, so reduce cooking time by about 5 minutes and adjust sugar or tamarind if the recipe has any.
Use 120% of the weight; melt gently over low heat to avoid burning the milk solids, which will yield a softer, creamier richness rather than a nutty aroma.
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.
Use 50% of the weight and stir in near the end of cooking. Adds warmth and depth since it contains ground coriander, but introduces stronger spices like clove and cinnamon.