Vegetarian●●●Origin Tamil NaduPrep 1 hour, plus soaking timeCook 20 minutes
A tangy, aromatic South Indian soup packed with tender aubergines simmered in a spiced tamarind and tomato broth, enriched with cooked dal and freshly toasted spices.
Spice powder spices
11 gBloomed in oil with chana dal before grinding (step 3)
Quarter 600–720 g small aubergine lengthwise and keep them submerged in a bowl of lightly salted water to prevent browning.
Combine 51.6 g toor dal with 375 ml water in a pressure cooker and cook under high pressure for 5 minutes (or simmer in a lidded saucepan for roughly 20 minutes) until completely softened.
Heat 13.5 g vegetable oil in a deep frying pan over medium heat. Tip in the spice powder spices along with 4.2 g chana dal, stir-frying for 1–2 minutes until fragrant and the lentils turn golden. Fold in 4 g fresh coconut, take off the heat, and grind in a spice mill or mortar and pestle to a fine powder.
Wipe out or reuse the pan and heat 9 g ghee or vegetable oil over medium heat. Add the tempering spices and 1 g curry leaf, cooking for about 1 minute until the mustard seeds crackle. Drain the aubergines and add them to the pan along with 120 g tomato, tossing over the heat for 2 minutes.
Pour in 527 g tamarind extract, the freshly ground spice powder, the ground turmeric, and salt to taste. Gently simmer over medium-low heat for 10–12 minutes until the aubergines are tender and the harsh, raw tamarind aroma softens.
Pour in the cooked toor dal, splashing in extra water if the rasam looks overly thick. Simmer for about 5 minutes more until a light froth collects on the surface. Turn off the heat and garnish with 2–3 g coriander leaf.
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.
Use 50% to 60% of the weight, soaked in equal parts warm water for 15 minutes before grinding. Works well for chutneys, though texture is slightly finer and sweeter.
Use 1.2 times the weight in curries. Adds creamy richness and authentic flavour, but makes gravies smoother and eliminates the grated, chewy mouthfeel.
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.