Kai yang is Thailand’s beloved street-food grilled chicken, marinated in a punchy blend of garlic, cilantro root, white pepper, and fish sauce, then grilled until the skin is crackling and the meat is juicy. It’s traditionally served with sticky rice and a tangy, herbaceous dipping sauce called jaew. This recipe delivers that authentic balance of salty, sweet, and savory with a serious smoky char, all from your home grill.
Ingredients
- 4 bone-in, skin-on chicken leg quarters (about 2 lb / 900 g total)
- 3 tbsp (45 ml) fish sauce
- 2 tbsp (30 ml) soy sauce
- 2 tbsp (30 g) palm sugar or brown sugar
- 2 tbsp (30 ml) vegetable oil
- 6 cloves garlic, peeled
- 3 cilantro roots, scrubbed (or 1/2 cup / 20 g cilantro stems)
- 1 tsp (2 g) ground white pepper
- 1/2 tsp (1 g) ground coriander
- 1/2 tsp (1 g) ground cumin
- 1/4 tsp (0.5 g) turmeric (optional, for color)
For the Jaew Dipping Sauce
- 2 tbsp (30 ml) fish sauce
- 2 tbsp (30 ml) lime juice
- 1 tbsp (15 ml) water
- 1 tbsp (15 g) palm sugar or brown sugar
- 1 tsp (5 g) Thai chili flakes (or 2 fresh bird’s eye chilies, minced)
- 1 shallot, thinly sliced
- 2 tbsp (8 g) chopped cilantro
- 1 tbsp (15 g) toasted sticky rice powder (khao khua) – optional but traditional
Instructions
- Make the marinade: In a mortar and pestle or small food processor, pound or pulse the garlic, cilantro roots, and white pepper into a coarse paste. Transfer to a bowl and stir in the fish sauce, soy sauce, sugar, oil, ground coriander, cumin, and turmeric if using. Stir until the sugar dissolves.
- Marinate the chicken: Place the chicken leg quarters in a large zip-top bag or shallow dish. Pour the marinade over, turning to coat each piece well. Massage the marinade into the skin and under the skin where possible. Seal and refrigerate for at least 2 hours, or up to 24 hours for deeper flavor.
- Make the jaew sauce: While the chicken marinates, combine all sauce ingredients in a small bowl. Stir until the sugar dissolves. Taste and adjust lime or fish sauce as needed. Set aside (it keeps at room temperature for up to 2 hours, or refrigerate).
- Prepare the grill: When ready to cook, preheat a charcoal or gas grill for medium-high heat (about 375–400°F / 190–200°C). If using charcoal, arrange coals to one side for two-zone cooking. Oil the grates well.
- Grill the chicken: Remove chicken from marinade, letting excess drip off. Place skin-side down over the hotter side of the grill. Cook for 5–7 minutes until the skin is golden and has grill marks. Flip and move to the cooler side of the grill. Cover and cook for 20–25 minutes, turning occasionally, until the thickest part of the thigh reaches an internal temperature of 165°F (74°C) as measured with a food thermometer (USDA FSIS safe minimum for poultry).
- Rest and serve: Transfer chicken to a cutting board and let rest for 5 minutes. Serve hot with the jaew sauce and sticky rice.
Tips
- Cilantro roots: If you can’t find them, use the thick stems of a bunch of cilantro – they have similar flavor. Or substitute with 1 tablespoon of chopped cilantro leaves and a pinch of celery salt.
- Don’t skip the rest: Resting the chicken after grilling lets the juices redistribute, so the meat stays moist. It also allows the internal temperature to rise a bit more.
- Charcoal vs. gas: Charcoal gives a smokier, more authentic flavor. If using gas, add a handful of soaked wood chips (like hickory or apple) in a smoker box for extra smokiness.
- Marinating time: At least 2 hours is essential; overnight is better. The acid in the fish sauce and sugar helps tenderize and flavor the meat deeply.
Serving Suggestions
Serve kai yang with steamed jasmine rice or sticky rice (khao niao), a fresh cucumber salad, and the jaew sauce for dipping. A side of som tam (green papaya salad) or a simple sliced tomato and cucumber with cilantro completes the Thai street-food experience. For a low-carb option, serve with lettuce wraps and pickled vegetables.
Variations
- Spicy version: Add 2–3 minced bird’s eye chilies to the marinade for extra heat.
- Oven-baked: Preheat oven to 425°F (220°C). Place chicken on a wire rack over a baking sheet and roast for 35–40 minutes, until skin is crisp and internal temp reaches 165°F (74°C).
- Chicken wings: Use whole wings instead of leg quarters; reduce cooking time to about 15–20 minutes, turning frequently.
- Gluten-free: Use tamari or coconut aminos instead of soy sauce.
Storage and Reheating
Refrigerate leftover grilled chicken in an airtight container for up to 3 days. To reheat, place on a baking sheet and warm in a 350°F (175°C) oven for 10–15 minutes, or until heated through to 165°F (74°C). The skin will crisp up better than in the microwave. You can also shred cold chicken for salads or fried rice. The jaew sauce keeps refrigerated for up to 1 week; bring to room temperature before serving.
Frequently Asked Questions
Can I use chicken breasts instead of thighs? Yes, but breasts dry out faster. Use bone-in, skin-on breasts and grill over medium heat, turning often, until they reach 165°F (74°C). Watch closely and consider brining first for extra moisture.
What is khao khua (toasted rice powder)? It’s glutinous rice that’s dry-toasted in a pan until golden, then ground to a powder. It adds a nutty, slightly crunchy texture to jaew. You can omit it or substitute with a pinch of toasted sesame seeds.
Can I marinate the chicken longer than 24 hours? Yes, but the texture may become mushy due to the enzymes in the marinade. For best results, keep it to 24 hours max.
How do I get crispy skin without burning it? Use two-zone grilling: sear skin-side down over high heat for a few minutes, then move to indirect heat to finish cooking. This renders the fat and crisps the skin without charring.
Is kai yang very spicy? Traditionally, the chicken itself is not spicy – the heat comes from the jaew sauce. Adjust the chilies in the sauce to your preference.
Can I make this in a grill pan indoors? Yes, use a cast-iron grill pan over medium-high heat. Cook in batches to avoid overcrowding, and finish in a 375°F (190°C) oven if needed to reach 165°F (74°C) without burning the skin.
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Safety notes: safe minimum internal temperatures from USDA FSIS; raw and undercooked fish guidance from the U.S. FDA. Food safety notes
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