The Sri Lankan table, closer to home.

recipe

Bonchi Curry: Sri Lankan Green Beans with Coconut

Fresh green beans and onion cooked with mustard, curry leaves and a small amount of coconut milk. A lightly sauced, firm-tender version with an optional fish finish.

AI editorial review: 2026-10-22

Researched recipe; not cooked or tested by Culinara.

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Ingredients and method

Ingredients

  • 12 ounces (340 g) fresh green beans, trimmed and cut into 1 1/2-inch pieces
  • 1 small red onion, thinly sliced
  • 1 1/2 tablespoons coconut oil or neutral vegetable oil
  • 1 teaspoon brown or black mustard seeds
  • 8–10 curry leaves, fresh or thawed frozen, thoroughly dried
  • 1 small green chile, slit lengthwise, optional
  • 1 cinnamon stick, about 2 inches
  • 1/4 teaspoon ground turmeric
  • 1/2 teaspoon fine salt, then adjust to taste
  • 1/2 teaspoon ground cumin
  • 1/4 teaspoon ground black pepper
  • 1/3 US cup unsweetened full-fat canned coconut milk, stirred smooth
  • 2 tablespoons water, plus more as needed
  • 2 teaspoons fresh lime juice
  • 1 teaspoon finely crushed ready-to-eat Maldive fish, optional; contains fish

Method

  1. Heat the oil in a wide skillet over medium heat. Add mustard seeds. As they begin to pop, carefully add curry leaves, green chile and onion; stir until the onion starts to soften.
  2. Add cinnamon, turmeric, salt and the beans. Toss to coat, then add 2 tablespoons water. Cook over medium heat, stirring regularly, until the beans lose their raw taste but retain a little bite. Add water a spoonful at a time if the spices start to catch.
  3. Stir in cumin, pepper and coconut milk. Simmer gently until hot and lightly reduced around the beans. Stop when the thickest bean is tender enough for you; this version should have a light coating rather than a deep pool of gravy.
  4. Turn off the heat and stir in lime juice. Remove cinnamon and the whole chile if desired. Taste and adjust salt. Scatter optional Maldive fish over the finished dish.
  5. Serve with rice and beetroot curry or chicken curry. Refrigerate leftovers promptly.
Cut green beans lightly coated in golden coconut sauce; AI-generated illustration.
AI-generated serving illustration, not a photograph of food cooked or tested by Culinara.
AI-generated illustration: Illustrated coconut-coated green beans; the sauce amount and color may differ with the milk and reduction.
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Image details

Original text-to-image output proportionally resized to 960×960, JPEG-compressed; no crop or added content.

Bonchi is green beans

This recipe uses fresh green string beans, not dried beans. Split very thick beans lengthwise if needed for more even cooking. Thin French beans will soften sooner, so check a piece frequently.

Yusra and Mohamed Ali Makim’s Saveur recipe uses a brief sauté and a little coconut milk. Roshani Wickramasinghe documents a softer, longer-cooked version with considerably more coconut milk. Both are meaningful household styles; the method here selects the firmer, lightly coated result.

Sources: [1] [2]

Choose the finish you want

Unsweetened canned coconut milk is intended here. Coconut beverage makes a thinner, less rich finish. This version uses individual cumin, pepper and turmeric; it does not require a premixed curry powder.

Omitting the optional Maldive fish keeps the dish vegetarian. A small pinch of bonito flakes can provide a different fish flavor, but they are softer and should not be treated as an identical product. Curry leaves have their own aroma and are not replaced by curry powder.

Sources: [1] [2]

Leftovers

Refrigerate in shallow containers within two hours, or one hour above 90°F; keep at 40°F or below. Use within 3–4 days. Reheat hot leftovers to 165°F.

Sources: [3] [4]

Research sources

  1. Yusra and Mohamed Ali Makim / Saveur — Sri Lankan Green Bean Curry (checked 2026-10-22)
  2. Roshani Wickramasinghe / Hungry Lankan — Sri Lankan Green Bean Curry (checked 2026-10-22)
  3. U.S. FDA — Safe Food Handling (checked 2026-10-22)
  4. University of Illinois Extension — Leftovers (checked 2026-10-22)