Indian cooking
Indian cooking / Dishes / Nimakai Rasam
Nimakai Rasam (Lime-flavoured Pepper Water)

Nimakai Rasam

Lime-flavoured Pepper Water
Vegetarian●●●Origin Tamil NaduPrep 30 minutes, plus soaking timeCook 30 minutes

A vibrant, tangy South Indian lentil broth brightened with fresh lime juice, warming black pepper, and toasted spices. Finished with a sizzled tempering of mustard seeds and curry leaves, it is aromatic and soothing.

Toasting spices

3.6 gToasted dry in the pan (step 3)
01
1.8 g1 teaspoon
spice
03
0.7 g¼ teaspoon
spice
Keep together for dry-roasting.

Rasam spices

7 gStirred into the broth with the dal (step 4)
01
2.5 g½ teaspoon
aromatic
02
4 g4 chillies
spice
03
~0.3 gpinch
spice
Stir together ready to add to the pan.

Tempering spices

3.6 gFried in hot oil (step 5)
02
1.6 g½ teaspoon
spice
Keep whole; they go into the hot oil together.

Everything else

01
Red lentils · Masoor Dalrinsed and drained
200 g
legume
02
100 g2 limes
fruit
03
~100 g1 bunch
herb
04
to taste
salt
05
14 g1 tablespoon
oil/fat
06
1.2 g5 leaves
herb

Method

  1. Submerge 200 g masoor dal in 500 ml water and leave to soak for 1 hour.
  2. Drain the soaked dal and transfer it to a large saucepan with 750 ml water. Bring to a boil and cook for roughly 20 minutes until tender. Drain thoroughly, return the lentils to the pan, and crush them finely with a wooden spatula.
  3. Warm a dry frying pan or tawa over medium-high heat. Add the toasting spices and stir-fry dry for 30 seconds until fragrant.
  4. Pour in the juice of 2 limes, then mix in the rasam spices, the mashed dal, 100 g coriander leaf, and salt to taste. Pour in 1 litre water and stir until evenly blended.
  5. For the tempering, heat 13.5 g vegetable oil in a small pan over medium heat. Add the tempering spices along with 1.2 g curry leaf and fry for about 2 minutes, until the chillies darken slightly.
  6. Tip the hot tempering into the lentil mixture and put the lid on straight away to lock in the aroma. Bring the rasam to a boil and cook for 3 minutes before taking off the heat.

Don't have something?

Masoor dal
  • Split mung beans

    Use equal weight; cooks down to a creamy, comforting purée in roughly the same 20-25 minutes, with a paler yellow colour.

  • Pigeon peas

    Use equal weight; needs 15 minutes longer cooking or pressure cooking, producing a slightly grainier, nuttier dal.

  • Chana dal

    Use equal weight; pre-soak for 1 hour and cook for 20 minutes longer; stays whole rather than breaking down into a silky soup.

Ground coriander
  • Coriander seeds

    Dry-roast lightly in a pan and grind to a fine powder; use equal weight (1:1). Offers a noticeably fresher, brighter citrus note.

  • Ground cumin

    Use 50% to 75% of the weight. Lacks the floral, citrusy profile of coriander and turns the gravy heavier, earthier, and darker.

  • Garam masala

    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.

Ground black pepper
  • Black peppercorn

    Use 1:1 by weight; pulverise in a spice mill or mortar to a fine powder for immediate, punchy heat.

  • Coarsely ground black pepper

    Use equal weight; offers the same bite, though it gives a visibly speckled finish and firmer crunch.

Ground cumin
  • Cumin seed

    Dry-roast briefly and grind finely; use equal weight (1:1). Imparts an even punchier, nuttier, toasty aroma than pre-ground cumin.

  • Ground coriander

    Use equal weight (1:1). Adds mild, lemony sweetness rather than cumin's smoky, earthy bite; curries will taste lighter and less savoury.

  • Black cumin seeds

    Grind finely; use 60% to 75% of the weight. Produces a darker, more complex, smoky-herbal flavour suited to rich gravies.

Lime
  • Lemon

    Use the same weight; sharper and less floral, so reduce any extra souring slightly.

  • Lemon juice

    Use about 30 g juice per lime (2 tbsp), strain pips; add at the end for fresh sourness.

  • Dried mango powder

    Use 1 g amchoor for about 15 g lime juice; add early with spices; gives dry mango sourness, not citrus aroma.

Ground garlic
  • Garlic powder

    Use equal weight (1:1). Behaves virtually identically, dissolving seamlessly into dry rubs or wet gravies.

  • Garlic paste

    Use 300% to 400% of the weight (e.g. 3–4 g paste for 1 g ground). Sauté in oil to cook off the raw moisture; imparts a fresher, sharper punch.

  • Garlic

    Finely mince or grate fresh cloves; use 300% to 400% of the weight. Fry gently in oil early in the cooking process to mellow the pungency.

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.

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.

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.

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.

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

Chenigapappu Chutney
Chana Dal Chutney
Chenigapappu Chutney is rich, nutty, and fresh-chilli hot, lacking the sharp lime tang and warming black pepper heat of this dish.
  • Same: Both dishes use lentils tempered in vegetable oil with mustard seeds, curry leaves, and asafoetida, alongside fresh coriander leaves.
  • Different: Chenigapappu Chutney is a thick ground condiment made from roasted chana dal, fresh coconut, ginger, and green chillies, rather than a boiled masoor dal broth spiced with black pepper, cumin, garlic, and dried red chillies.
Masoor Pappu Charu
Spicy Pepper Water
Masoor Pappu Charu has a sweeter, richer body and a deep tamarind tang with heavier pepper heat, whereas this dish tastes lighter, garlic-scented, and sharply citrusy.
  • Same: Both broths are built on masoor dal seasoned with black pepper, cumin, coriander, asafoetida, dried red chillies, and a mustard seed and curry leaf tempering.
  • Different: Masoor Pappu Charu sours the soup with tamarind extract instead of lime juice, adds ghee, turmeric, and a large quantity of onions, and omits garlic while using far less dal.
Molgai Podi
Dry Ground Chutney
Molgai Podi has a rich, nutty, and fiery roasted flavour rather than the sharp black pepper heat and tangy lime acidity of this dish.
  • Same: Molgai Podi shares the use of lentils, dried red chillies, curry leaves, asafoetida, and vegetable oil with this dish.
  • Different: Rather than a simmered masoor dal broth tempered with mustard seeds, garlic, and cumin, Molgai Podi is a dry roasted powder made with chana dal and desiccated coconut.
Veerakkaikura
Ribbed Gourd with Chana Dal
It tastes milder and savory from the tomatoes and gourd, trading the sharp citrus tang and pungent black pepper bite of this dish for the grassy heat of green chillies.
  • Same: Veerakkaikura shares a base of lentils and garlic seasoned with ground cumin and coriander, finished with a tempering of mustard seeds, curry leaves, and dried red chillies in vegetable oil.
  • Different: Instead of a thin masoor dal broth spiced with black pepper and asafoetida, it is a vegetable curry cooked with ribbed gourd, chana dal, tomatoes, turmeric, and fresh green chillies without lime juice.