Indian cooking
Indian cooking / Dishes / Kathirikkai Rasam
Kathirikkai Rasam (Aubergine (Eggplant) Rasam)

Kathirikkai Rasam

Aubergine (Eggplant) Rasam
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)
01
3.4 g2 teaspoons
spice
02
1.9 g½ teaspoon
spice
03
1.4 g½ teaspoon
spice
04
1.4 g½ teaspoon
spice
05
3–4 g3–4 chillies
spice
Keep whole; they will be toasted in oil and ground to a powder.

Tempering spices

6 gSizzled in hot ghee or oil with curry leaves (step 4)
01
3.3 g1 teaspoon
spice
02
2.1 g1 teaspoon
spice
03
1 g1 chilli
spice
Keep whole: they go into the hot fat together.

Ground turmeric

1.5 gStirred into the tamarind broth (step 5)
01
1.5 g½ teaspoon
spice
Leave ground; adds color and earthy warmth directly to the broth.

Everything else

01
600–720 g10–12 aubergines
vegetable
02
Pigeon peas · Toor Dalrinsed and drained
52 g4 tablespoons
legume
03
120 g1 tomato
vegetable
05
to taste
salt
06
2–3 g2–3 tablespoons
herb
07
14 g3 teaspoons
oil/fat
08
Chana dalrinsed and drained
4.2 g1 teaspoon
legume
09
4 g2 teaspoons
fruit
11
~1 g1 sprig
herb

Method

  1. Quarter 600–720 g small aubergine lengthwise and keep them submerged in a bowl of lightly salted water to prevent browning.
  2. 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.
  3. 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.
  4. 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.
  5. 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.
  6. 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.

Don't have something?

Small aubergine
  • Eggplant

    Use equal weight. Cut into 3-4 cm cubes; cooks down more quickly than whole small aubergines and softens into the gravy within 12-15 minutes.

  • Potato

    Use equal weight. Halve or quarter; holds its shape well and absorbs spiced gravies, but requires 10-15 minutes longer cooking time.

  • Paneer

    Use 80% of the weight. Cut into cubes, lightly pan-fry, and simmer in the sauce for only the final 5 minutes so it stays tender.

Toor dal
  • Red lentils

    Use equal weight. Cooks considerably faster and breaks down into a softer, creamier consistency with an earthier taste.

  • Chana dal

    Use equal weight. Requires longer soaking and cooking; remains firmer with a nuttier bite and less starchy thickening.

  • Split mung beans

    Use equal weight. Cooks quickly to a lighter, more delicate, and silky texture.

Tomato
  • Tomato purée

    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.

  • Plain yogurt

    Use 60% of the weight, whisked smooth and added on low heat. Provides rich body and sourness, though the gravy becomes paler and creamier.

Tamarind extract
  • Tamarind

    Use 180% of the weight of compressed tamarind; soak in three times its weight of boiling water for 15 minutes, knead, and strain out the thick pulp.

  • Dried mango powder

    Use 35% of the weight dissolved in two tablespoons of warm water. Provides sharp tang, though the resulting sauce will be lighter in colour.

  • Lemon juice

    Use equal weight, added right at the end of cooking. Adds sharp acidity without the deep brown hue or pulpy thickness.

Ground turmeric
  • Ground ginger

    Use 50% of the weight. Mimics turmeric's warm, earthy, rhizome background, but provides none of the golden-yellow colour.

  • Saffron

    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.

Coriander leaf
  • Coriander

    Use equal weight finely chopped; this is the exact same fresh herb.

  • Mint

    Use half the weight finely chopped; provides vibrant green freshness, though the flavour profile becomes noticeably cooler and sharper.

Vegetable oil
  • Peanut oil

    Use 1:1 by weight. Handles high-heat frying identically and introduces a very subtle, pleasant nuttiness.

  • Ghee

    Use 1:1 by weight. Yields a much richer, authentic aroma and a glossy, heavier mouthfeel.

  • Mustard oil

    Use 1:1 by weight. Heat until smoking, then cool slightly before cooking to temper its intensely pungent, sharp mustard kick.

Coriander seeds
  • Ground coriander

    Use 75% of the weight; stir in along with wet masala or tomato purée rather than frying in hot oil, as the fine powder burns instantly.

  • Cumin seed

    Use 50% of the weight for tempering in hot oil. Lacks the floral, sweet citrus flavour of coriander, introducing warm, pungent earthiness instead.

  • Fennel seed

    Use 50% of the weight in tempering; provides pleasant aromatic sweetness, though noticeably aniseedy rather than citrusy.

Fenugreek seed
  • Mustard seed

    Use 50% of the weight, crush or grind. Sharper heat and less maple-bitter; fry briefly in oil before adding.

  • Caraway seeds

    Use the same weight, crush lightly. Similar bitter-seed note but more aniseed; reduce other sweet spices slightly.

  • Ajwain seeds

    Use 25–30% of the weight, crush. Much stronger thyme-like flavour; do not overdo.

Black peppercorn
  • Coarsely ground black pepper

    Use 75% of the weight. Add midway through simmering; spreads heat evenly through the dish instead of delivering isolated bursts.

  • Ground black pepper

    Use 50% of the weight. Stir in near the end of cooking; significantly darkens light gravies and provides an immediate, sharp bite.

Asafoetida
  • Garlic powder

    Use double the weight. Stir into hot oil just before adding wet ingredients; mimics the allium savoury background without the sulphurous edge.

  • Garlic paste

    Use 2 g for every 0.5 g of asafoetida. Sauté in oil until the raw smell clears; adds moisture and sweet allium depth.

Dried red chilli
  • Dried kashmiri chilli

    Use equal weight whole. Fry in hot oil or ghee as tempered spice; gives a richer red colour with slightly milder heat.

  • Red chilli powder

    Use 50% to 70% of the weight. Stir into the oil with ground spices; distributes heat evenly throughout the dish without whole chilli skins.

Chana dal
  • Yellow split peas

    Use 100% of the weight. Soak for at least 1 hour; takes about 10 minutes longer to cook through and has a marginally earthier flavour.

  • Pigeon peas

    Use 100% of the weight. Reduces cooking time by about 10 minutes and breaks down softer, giving a smoother consistency rather than distinct grains.

  • Black gram

    For tempering or tadka only: use 70% of the weight. Browns faster in hot oil, providing a nutty, crunchy bite.

Fresh coconut
  • Desiccated coconut

    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.

  • Coconut milk

    Use 1.2 times the weight in curries. Adds creamy richness and authentic flavour, but makes gravies smoother and eliminates the grated, chewy mouthfeel.

Ghee or vegetable oil
  • Peanut oil

    Use equal weight; handles high tempering heat well and keeps flavours neutral.

  • Butter

    Use equal weight; cook over gentle heat to prevent browning the milk solids too quickly.

Mustard seed
  • Black mustard seed

    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.

  • Yellow mustard seeds

    Use the same weight. They are milder and larger; fry a few seconds longer until they pop. The finished dish will have less pungency.

  • Ground mustard seed

    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.

Cumin seed
  • Ground cumin

    Use 70% of the weight; add with ground spices or sauce bases rather than hot oil tempering, where it scorches quickly and turns bitter.

  • Black cumin seeds

    Use equal weight for oil tempering. Delivers an earthy profile with an additional musky, smoky, and slightly bitter edge.

  • Fennel seed

    Use 60% of the weight for tempering; offers comparable warm aroma, but leans sweet and liquorice-like rather than savoury and earthy.

Curry leaf
  • Bay leaf

    Fry 1 bay leaf for every 5 curry leaves in hot oil; imparts a warm, woodsy background note, but misses the citrus-sulphury punch entirely.

  • Lime juice

    Add a small squeeze (about 5 ml per sprig of curry leaves) right before serving; provides sharp citrus top notes without the toasty, herbal aroma.

Similar dishes

Kholamba
Spicy Pigeon Pea Curry from Mangalore
Kholamba is thicker and more dal-forward with a sharper, fresher heat from green chillies rather than the roasted, coconut-mellowed warmth of this dish.
  • Same: Both are South Indian lentil dishes simmered in a tangy tamarind and tomato broth spiced with roasted coriander seeds, cumin, fenugreek, and mustard seeds.
  • Different: Kholamba doubles the toor dal and tomatoes while adding green peas and urad dal, but it omits the aubergine, fresh coconut, and ghee found in this dish.
Masoor Pappu Charu
Spicy Pepper Water
Masoor Pappu Charu is significantly more peppery, herbal, and sweet from onions, whereas this dish has a milder, vegetal, and tomato-tamarind balance.
  • Same: Both are South Indian lentil soups soured with tamarind and tempered with mustard seeds, cumin, curry leaves, and dried red chillies.
  • Different: Masoor Pappu Charu uses masoor dal and sliced onions instead of toor dal, aubergines, and tomatoes, while omitting the coconut and fenugreek seeds in favor of far more black peppercorns, ghee, and fresh coriander.
Podi Sambhar
Sambhar with Fresh Ground Spices
Podi Sambhar is thicker, heartier, and creamier from the extra lentils and coconut, lacking the sharp tomato tang and black pepper heat of this dish.
  • Same: Podi Sambhar shares a tamarind base seasoned with toor dal, fresh coconut, and a roasted spice paste of coriander seeds, chana dal, fenugreek, and dried red chillies tempered with mustard seeds and curry leaves.
  • Different: Instead of aubergines and tomatoes, Podi Sambhar uses potatoes cooked with nearly three times as much toor dal and coconut, while leaving out the black peppercorns and ghee tempering used in this dish.
Mangalore Saar
Rasam from Mangalore
Mangalore Saar tastes sharper and more peppery and toasted-lentil forward than this dish, with less tomato-aubergine sweetness and body from dal.
  • Same: Mangalore Saar shares a tamarind-based South Indian rasam style with this dish, using the same 527 g tamarind extract plus coconut, chana dal, mustard seed, cumin seed, fenugreek, black peppercorn, asafoetida, curry leaf, and coriander leaf.
  • Different: Mangalore Saar lacks this dish's aubergine, tomato, turmeric, toor dal, and dried red chilli, and it adds urad dal and plain rice while using more chana dal and black peppercorn.