Kaeng Khiao Wan

Thai green curry with round green Thai eggplant and chicken in fragrant coconut milk with kaffir lime, lemongrass, and Thai basil

Origin: Central Thailand

From the journey of Eggplant / Aubergine.

Thailand's relationship with eggplant is unique in world cooking: no other cuisine has developed as many distinct eggplant varieties for as many specific culinary purposes. The round green Thai eggplant (ma-kheua pro, มะเขือเปราะ), roughly the size of a golf ball, pale green to cream-streaked, and slightly bitter with a firm flesh that holds its shape in liquid, is the central eggplant of the Thai curry tradition. The tiny pea eggplant (ma-kheua puang, มะเขือพวง), no larger than a large pea, is used whole in curries for its sharp, bitter pop against the rich coconut milk. The long purple eggplant (ma-kheua yao, มะเขือยาว) is reserved for stir-fries and grills. This diversity of variety matched to technique reflects a culinary culture that has been working with eggplant for over a thousand years, since Indian Ocean trade carried the plant northward through the Malay Peninsula into the Chao Phraya Basin during the Dvaravati Kingdom period. Kaeng khiao wan (literally 'sweet green curry') is one of the three great Thai curries alongside red (kaeng phet) and yellow (kaeng kari). The green curry paste is made from fresh green chillies, lemongrass, galangal, kaffir lime zest, coriander root, garlic, shallots, and shrimp paste, producing a deeply fragrant base that is simultaneously herbaceous, citrus-bright, and layered with fermented savour. Round Thai eggplant is the canonical vegetable: it absorbs the coconut milk beautifully while the slight bitterness of the skin provides a counterpoint to the richness of the sauce. Thai basil (horapa, with its anise-sweet fragrance distinct from Italian basil) and kaffir lime leaves are the finishing aromatics; neither is optional. The dish belongs to the royal Thai culinary tradition that codified the great curry preparations in the Bangkok period, though its roots in the spiced coconut broths of the Ayutthaya Kingdom go back several centuries further.

Ingredients

Curry

  • 2 tbsp coconut oil or vegetable oil
  • 4 tbsp Thai green curry paste (ready-made, such as Maesri or Mae Ploy brand; see notes for homemade)
  • 400 ml full-fat coconut milk (do not shake the can before opening)
  • 200 ml chicken stock or water

Protein

  • 400 g boneless skinless chicken thighs, cut into 3 cm pieces

Vegetables

  • 350 g round green Thai eggplant (ma-kheua pro), quartered (or regular eggplant, cut into 3 cm chunks)
  • 80 g pea eggplants (ma-kheua puang, optional but traditional)

Aromatics

  • 4 kaffir lime leaves, central rib removed and leaves torn

Seasoning

  • 2 tbsp fish sauce
  • 1 tsp palm sugar or light brown sugar

To Finish

  • 1 large handful Thai basil leaves (horapa), stems removed
  • 2 red chillies, thinly sliced, to garnish

To Serve

  • steamed jasmine rice, to serve

Method

  1. Open the coconut milk without shaking and spoon the thick cream from the top of the can into a measuring jug (about 100 to 120 ml). Set the remaining thinner coconut liquid aside.
  2. Heat the oil in a wide, deep pan or wok over medium-high heat. Add the green curry paste and fry, stirring constantly, for 2 to 3 minutes until intensely fragrant and the paste has separated slightly from the oil.
  3. Add the thick coconut cream. Stir to combine with the paste and cook for 3 to 4 minutes, stirring frequently, until the mixture is bubbling and the coconut fat has separated and shimmers on the surface.
  4. Add the chicken pieces. Toss to coat thoroughly in the paste and cook for 3 to 4 minutes, turning occasionally, until the chicken has lost its raw pink colour on the outside.
  5. Pour in the remaining coconut liquid and the chicken stock. Add the round Thai eggplant, pea eggplants (if using), and kaffir lime leaves. Bring to a gentle simmer.
  6. Simmer uncovered for 12 to 15 minutes until the chicken is cooked through and the eggplant is tender but still holding its shape. The round Thai eggplant should be completely soft when pressed but not disintegrating.
  7. Season with fish sauce and palm sugar. Taste and adjust: the curry should be rich, fragrant, and balanced between the heat of the paste, the sweetness of the coconut, and the salt of the fish sauce.
  8. Remove from heat. Stir in the Thai basil leaves. Serve immediately in deep bowls with steamed jasmine rice, garnished with sliced red chilli.

Notes

Round green Thai eggplant (ma-kheua pro) is available from Thai and Southeast Asian grocery stores. If unavailable, regular purple eggplant cut into 3 cm chunks is a workable substitute, though it lacks the characteristic slight bitterness and firmer texture. Pea eggplants are highly seasonal outside of Thailand and may be difficult to source; their contribution is textural and mildly bitter, and the curry is complete without them. For a vegetarian version, substitute the chicken with firm tofu (pressed and cubed) and replace the fish sauce with light soy sauce or a vegetarian fish sauce; use vegetable stock. Homemade green curry paste requires lemongrass, galangal, fresh green chillies, garlic, shallots, kaffir lime zest, coriander root, cumin, white pepper, and shrimp paste pounded together in a mortar; it is significantly more aromatic than the ready-made version but requires 20 minutes of additional preparation.

The Gastrographer

The Gastrographer

Mapping Culinary History

To explore — select an ingredient below.

Journey Point Map Key

Ingredient originTrade or transit route
Became a culinary stapleColonial / trade control
© 2026 The Gastrographer. All original research, narratives, and illustrations. All rights reserved.