Thai Grilled Chicken (Gai Yang) Recipe
Introduction
Thai Grilled Chicken, or Gai Yang, is a fragrant, flavorful dish featuring marinated chicken thigh fillets grilled to perfection. This recipe balances tangy lemongrass and savory fish sauce with a touch of sweetness, delivering a deliciously juicy result that pairs beautifully with coconut rice.

Ingredients
- 2 lb / 1 kg chicken thigh fillets (skinless, boneless)
- 1 large lemongrass stalk (white part only, reedy outer layers removed, sliced 5mm thick)
- 4 cloves garlic (peeled)
- 2 1/2 tbsp fish sauce
- 1 tbsp light soy sauce (or any all-purpose soy or tamari)
- 2 tsp dark soy sauce
- 3 tbsp tightly packed brown sugar or palm sugar
- 2 tbsp oil (vegetable, canola, or any neutral-flavored oil)
- Nam Jim Jaew (traditional Thai dipping sauce for meat – recommended)
- Lime sweet chili sauce
- Bottle of sweet chili sauce
- Lime wedges
- Red chili (finely sliced, optional)
- Cilantro / coriander leaves (optional)
- Coconut rice
Instructions
- Step 1: Place all marinade ingredients except the oil into a jug just large enough to fit the head of a stick blender. Blitz until the lemongrass and garlic are fully pureed. If you don’t have a stick blender, finely grate the lemongrass and garlic, then mix well.
- Step 2: Pour the marinade into a bowl and stir in the oil. Add the chicken and toss to thoroughly coat. Cover and marinate overnight, or at least 3 hours. If short on time, finely slice the chicken, toss it in the marinade, and cook it like a stir-fry.
- Step 3: Heat your outdoor BBQ grill on high or warm a non-stick pan over high heat on the stove.
- Step 4: Remove the chicken from the marinade and discard the marinade (unless baking in the oven—see note). Place the chicken on the BBQ or in the pan, then reduce the heat to medium to prevent burning due to the sweet marinade. Cook until golden brown, about 5 to 6 minutes on each side. If the chicken starts to burn, flip it immediately. You can flip repeatedly as needed.
- Step 5: Let the chicken rest for 3 minutes. Serve with a mound of steamy coconut rice, lime wedges, fresh sliced chilies, cilantro or coriander leaves, and your choice of dipping sauce.
Tips & Variations
- Using a stick blender makes the marinade smoother, but finely grating lemongrass and garlic works well if you don’t have one.
- Adjust sweetness by using brown sugar or palm sugar based on preference — palm sugar offers a more authentic Thai flavor.
- If short on time, slice the chicken thinly and stir-fry with the marinade instead of grilling.
- For more heat, garnish with extra fresh chilies or add chili flakes to the marinade.
- Pair the grilled chicken with traditional Nam Jim Jaew sauce for an authentic taste or use a sweet chili sauce for a milder, sweeter dip.
Storage
Store leftover grilled chicken in an airtight container in the refrigerator for up to 3 days. Reheat gently in a low oven or microwave to keep it juicy. Avoid overheating to prevent drying out. Coconut rice can be stored separately and reheated with a sprinkle of water to retain moisture.
How to Serve

Serve this delicious recipe with your favorite sides.
FAQs
Can I use bone-in chicken instead of boneless thighs?
Yes, bone-in chicken can be used but will require longer cooking time. Grill on medium heat until cooked through and the internal temperature reaches 165°F (74°C).
Is lemongrass paste a good substitute?
Lemongrass paste can be used instead of fresh lemongrass for convenience. Use about 1 to 2 tablespoons of paste to substitute one stalk, adjusting to taste.
Print
Thai Grilled Chicken (Gai Yang) Recipe
- Total Time: 3 hours 27 minutes
- Yield: 4 servings 1x
Description
Thai Grilled Chicken (Gai Yang) is a classic Thai street food favorite featuring juicy, marinated boneless chicken thighs infused with fragrant lemongrass, garlic, and fish sauce. This flavorful chicken is grilled to golden perfection and served with coconut rice and zesty accompaniments like lime wedges, fresh chilies, and traditional Nam Jim Jaew sauce for a delicious, authentic Thai meal.
Ingredients
Chicken and Marinade
- 2 lb / 1 kg chicken thigh fillets, skinless and boneless
- 1 large lemongrass stalk, white part only, sliced 5mm thick
- 4 cloves garlic, peeled
- 2 1/2 tbsp fish sauce
- 1 tbsp light soy sauce (or any all-purpose soy or tamari)
- 2 tsp dark soy sauce
- 3 tbsp brown sugar or palm sugar, tightly packed
- 2 tbsp neutral-flavored oil (vegetable or canola oil)
To Serve
- Nam Jim Jaew (traditional Thai dipping sauce for meat) – recommended
- Lime sweet chili sauce
- Sweet chili sauce (bottle)
- Lime wedges
- Red chili, finely sliced (optional)
- Cilantro/coriander leaves (optional)
- Coconut rice
Instructions
- Blitz the Marinade: Place lemongrass, garlic, fish sauce, light soy sauce, dark soy sauce, and brown sugar into a jug just large enough to fit the head of a stick blender. Blitz until the lemongrass and garlic are fully pureed. If you don’t have a stick blender, finely grate the lemongrass and garlic, then mix thoroughly with the other ingredients.
- Marinate the Chicken: Pour the pureed marinade into a bowl and stir in the oil. Add the chicken thigh fillets and toss to coat them thoroughly. Cover and marinate in the refrigerator overnight for best flavor, or at least 3 hours. If short on time, finely slice the chicken, toss in the marinade, and cook like a stir-fry.
- Preheat the Grill or Pan: Heat an outdoor BBQ grill on high, or place a non-stick pan over high heat on the stove.
- Cook the Chicken: Remove the chicken from the marinade, discarding the marinade (unless baking in the oven, then reserve marinade as per recipe note). Place the chicken on the grill or pan, then reduce the heat to medium to prevent burning due to the sweetness of the marinade. Cook the chicken fillets for about 5 to 6 minutes on each side until golden brown and cooked through. If the chicken burns, flip immediately and you may flip repeatedly as needed to avoid burning.
- Rest and Serve: Let the chicken rest for 3 minutes after cooking. Serve with a mound of warm coconut rice, lime wedges, fresh sliced chili, coriander leaves, and your choice of dipping sauces such as Nam Jim Jaew or sweet chili sauce.
Notes
- Note 1: Using skinless, boneless chicken thigh fillets ensures tender and juicy results.
- Note 2: Only use the white part of the lemongrass and remove tough outer layers for the best texture and flavor.
- Note 3: Light soy sauce and dark soy sauce provide depth and color. If baking instead of grilling or pan-cooking, you may reserve marinade to baste the chicken during cooking, but discard when grilling or pan-frying to avoid contamination.
- Marinate overnight for best flavor penetration, but at least 3 hours is recommended.
- If short on time, slicing the chicken and quickly stir-frying is an effective alternative to grilling.
- Prep Time: 15 minutes
- Cook Time: 12 minutes
- Category: Main Course
- Method: Grilling
- Cuisine: Thai
Keywords: Thai grilled chicken, Gai Yang, lemongrass chicken, Thai BBQ, grilled chicken thighs, Thai marinade chicken

