A tangy, warming South Indian rasam-style broth featuring tender green chickpeas infused with sour tamarind and aromatic spices. Sizzling tempered mustard seeds, dried chillies, and curry leaves round out its bold, peppery flavour.
Place 1000 g green chickpeas into a saucepan, pour in roughly 600 ml water, and bring to the boil. Simmer for about 20 minutes until completely tender, then drain, pouring all the cooking water into a clean pot to reserve.
Warm 14 g vegetable oil in a frying pan set over medium heat. Add the spices to fry and 1 teaspoon garlic, stir-frying for 1 to 2 minutes until lightly browned and fragrant. Tip the mixture into a spice grinder or mortar along with 1 tablespoon of the cooked green chickpeas and the chilli powder, then grind into a paste.
Set the pot of reserved chickpea cooking water over medium heat. Stir in 264 g tamarind extract, 4.2 g granulated sugar, the prepared ground spice paste, and the broth spices. Add salt to taste, stir well, and simmer gently for 5 to 8 minutes.
Heat the remaining 13 g vegetable oil in a small pan over medium heat. Tip in the tempering spices along with 2 g curry leaf, stir-frying for roughly 2 minutes until the chillies darken slightly and the mustard seeds crackle. Pour the hot oil mixture over the simmering soup, cover immediately with a lid, and cook for an additional 2 minutes before serving.
Grind whole seeds finely in a spice grinder; use equal weight (1:1). Ensure it cooks through gently, as undercooked or burnt ground seeds become intensely bitter.
Crush dried leaves between your palms and add towards the end; use 50% of the weight. Gives the unmistakable maple-herb aroma without the sharp bitterness of the seeds.
Use 1 g ground for 4 g whole (or 1 small pinch per 2 to 3 whole cloves). Add with spice powders; disperses intense warmth quickly, so use with restraint.
Allspice berries
Use 100% of the weight whole in tempering. Imparts a warm, clove-like aromatic profile combined with hints of nutmeg and cinnamon.
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.
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 the same weight. The seeds are smaller and hotter; fry in hot oil until they pop, about 20–30 seconds, and reduce the heat if they darken too fast. The dish will be a little sharper.
Use 70% of the weight of whole seed, added with the other ground spices rather than fried whole. You lose the popping texture and the heat comes through more evenly.