Indian cooking
Indian cooking / Dishes / Vazhai Thandu Kari
Vazhai Thandu Kari (Banana Stem Curry)

Vazhai Thandu Kari

Banana Stem Curry
Vegetarian●●●Origin Tamil NaduPrep 20 minutes, plus standing timeCook 10–15 minutes

A comforting South Indian dry curry of tender banana stem cooked with moong dal and buttermilk, finished with fresh coconut. It offers a subtle tanginess paired with a mild, earthy crunch and gentle heat from whole spices.

Tempering spices

2.6 gFried in the hot oil (step 2)
01
1.6 g½ teaspoon
spice
Keep whole: they go into the hot oil together.

Everything else

01
Banana stem · Kela ka tana30-cm / 12-inch long
600 g1 piece
vegetable
02
8 g2 teaspoons
legume
03
259 g250 ml
dairy
04
4.5 g1 teaspoon
oil/fat
05
Black gram · Urad Dalrinsed and drained
4.3 g1 teaspoon
legume
06
4 g2 teaspoons
fruit
07
to taste
salt

Method

  1. Peel the fibrous outer layer from 1 banana stem (30-cm / 12-inch long), cut it into rounds, and chop into small dice. In a bowl, combine the diced stem with 2 teaspoon moong dal, 250 g buttermilk, and salt to taste. Leave to rest for 15 minutes.
  2. Warm 4.5 g vegetable oil in a large, heavy-based pan set over medium heat. Add the tempering spices and 4.3 g urad dal, stirring for 1 to 2 minutes until the mustard seeds crackle and the dal turns lightly golden, then turn the heat down to low.
  3. Transfer the banana stem and buttermilk mixture into the pan. Cook over low heat, stirring frequently, for about 10 minutes until the stem is tender.
  4. Mix in 4 g fresh coconut and allow the curry to simmer for another 2 minutes before serving.

Don't have something?

Banana stem
  • Bottle gourd

    Use the same weight; cut into matchsticks. Cooks 5–8 minutes faster and is softer, with less fibre.

  • Cabbage

    Use the same weight, shredded; cooks faster and gives no fibrous crunch.

  • Banana flower

    Use the same weight, chopped; more bitter, so blanch first.

Moong dal
  • Red lentils

    Use equal weight. It cooks in about the same time and breaks down to a similar soft, creamy consistency, though the colour will be slightly pinkish-orange.

  • Pigeon peas

    Use equal weight. Requires longer soaking and cooking time, and produces a slightly earthier, denser dal.

Sour buttermilk
  • Buttermilk

    Use the same weight; add 10 ml lemon juice per 200 ml if it is not sour enough. Stir well.

  • Soured natural yoghurt

    Use the same weight; whisk with water to buttermilk consistency, about 1 part yoghurt to 1 part water.

  • Yogurt

    Use the same weight; whisk with an equal volume of water and add lemon juice to taste.

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.

Urad dal
  • Whole black gram

    Use equal weight. Needs longer soaking and cooking; the dark skins impart an earthy flavour and greyish-black hue unless thoroughly rubbed off.

  • Chana dal

    Use equal weight when tempering (tadka). Provides a comparable nutty, crunchy texture in hot oil, though grains are slightly larger.

  • Split mung beans

    Use equal weight for batters or dals. Ferments and cooks faster, producing a lighter, less sticky, and less viscous consistency.

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.

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.

Similar dishes

Aratidhoota Pappu
Dal with Banana Stems
Aratidhoota Pappu has a stronger, punchier sourness from tamarind and an earthy spice profile, rather than the mild, creamy tang of buttermilk and coconut in this dish.
  • Same: Aratidhoota Pappu also combines tender banana stem with lentils and uses a tempering of vegetable oil, mustard seeds, urad dal, and dried red chillies.
  • Different: Instead of being a dry moong dal curry with buttermilk and fresh coconut, Aratidhoota Pappu is a brothy masoor dal dish made with tamarind extract, fenugreek seeds, curry leaves, turmeric, and asafoetida.
Moong Dal ki Chutney
Moong Dal Chutney
Moong Dal ki Chutney is significantly spicier and intensely sour from tamarind, unlike the mild, gently tangy profile of this dish.
  • Same: Both dishes use moong dal tempered with mustard seeds and dried red chillies in vegetable oil.
  • Different: Moong Dal ki Chutney is a blended condiment made with onion, green chillies, fenugreek seeds, and tamarind extract, lacking the banana stem, urad dal, buttermilk, and fresh coconut found in this dry curry.
Jeera Rasam
Cumin Seed Rasam
Jeera Rasam is much more sour and brothy with the pungent warmth of cumin and rasam podi, contrasting with the mild, creamy, and lightly tangy profile of this dish.
  • Same: Both South Indian preparations use tempered mustard seeds and dried red chillies alongside lentils.
  • Different: Jeera Rasam is a thin broth made with tamarind extract, toor dal, cumin seeds, rasam podi, and ghee, whereas this dish is a dry curry made with banana stem, moong dal, buttermilk, coconut, and vegetable oil.
Majjida Karhi
Dal & Buttermilk Curry
It tastes sharper and more tangy from lime and more coconut-rich and spicy from green chilli, while this dish is milder with a subtle tang and earthy banana stem crunch.
  • Same: Majjida Karhi shares sour buttermilk, mung dal, fresh coconut, mustard seed, urad dal, dried red chilli, vegetable oil, and salt with this dish.
  • Different: It adds rice, ginger, turmeric, onion, green chilli, coriander leaf, and lime, and it lacks banana stem, so it is a silky buttermilk-based curry rather than a dry banana stem curry.