Grilled Chicken, known in Thailand as Gai Yang, is one of the country's most beloved street food dishes. Originating from Thailand’s northeastern Isaan region, Gai Yang features chicken marinated in a fragrant mixture of garlic, coriander root, fish sauce, soy sauce, and spices before being grilled over charcoal until juicy and perfectly charred.

The result is tender, flavorful chicken with crispy skin and a smoky aroma that pairs beautifully with sticky rice, papaya salad, and spicy dipping sauces.

What is Gai Yang?

Gai Yang is a traditional Thai grilled chicken dish that is commonly sold by street vendors, markets, and restaurants throughout Thailand. The chicken is marinated for several hours to absorb a blend of savory, sweet, and aromatic flavors before being slowly grilled over charcoal.

Unlike many Western grilled chicken recipes, Gai Yang emphasizes a balance of herbs, spices, and umami-rich seasonings that create a uniquely Thai flavor profile.

Why You'll Love This Recipe

  • Juicy and flavorful chicken
  • Authentic Thai street food taste
  • Easy to prepare
  • Perfect for grilling season
  • Great for family gatherings and barbecues
  • Pairs well with many Thai side dishes

Ingredients

For the Chicken

  • 1 whole chicken (about 1.5 kg), butterflied
    or
  • 8 chicken thighs

For the Marinade

  • 6 cloves garlic
  • 3 coriander roots (or 2 tablespoons coriander stems)
  • 1 teaspoon white pepper
  • 2 tablespoons fish sauce
  • 2 tablespoons light soy sauce
  • 1 tablespoon oyster sauce
  • 1 tablespoon palm sugar
  • 1 tablespoon vegetable oil
  • 1 teaspoon turmeric powder (optional)

For Serving

  • Sticky rice
  • Thai dipping sauce (Nam Jim Jaew)
  • Lime wedges
  • Fresh vegetables

Equipment Needed

  • Grill or barbecue
  • Mortar and pestle (or food processor)
  • Mixing bowl
  • Tongs
  • Meat thermometer (optional)

Preparation Time

  • Prep Time: 20 minutes
  • Marinating Time: 4–12 hours
  • Cook Time: 35–45 minutes
  • Total Time: Approximately 5–13 hours
  • Servings: 4–6

Step 1: Prepare the Marinade

Using a mortar and pestle, pound together:

  • Garlic
  • Coriander roots
  • White pepper

Until a smooth paste forms.

Transfer the paste to a bowl and mix with:

  • Fish sauce
  • Soy sauce
  • Oyster sauce
  • Palm sugar
  • Vegetable oil
  • Turmeric (if using)

Step 2: Marinate the Chicken

Place the chicken in a large bowl or resealable bag.

Rub the marinade thoroughly over every part of the chicken.

Cover and refrigerate for at least 4 hours, preferably overnight.

Step 3: Prepare the Grill

Preheat a charcoal grill to medium heat.

Traditional Gai Yang is cooked slowly over charcoal to develop its signature smoky flavor.

If using a gas grill, preheat to medium heat.

Step 4: Grill the Chicken

Place the chicken skin-side down on the grill.

Cook slowly for about 20 minutes.

Turn and continue grilling for another 15–25 minutes.

Baste occasionally with leftover marinade or coconut milk for extra moisture.

The chicken is done when:

  • The internal temperature reaches 75°C (165°F)
  • The skin is golden brown and lightly charred

Step 5: Rest the Chicken

Remove the chicken from the grill.

Let it rest for 5–10 minutes before slicing.

This helps retain the juices.

Step 6: Serve

Slice the chicken into serving pieces.

Serve with:

  • Sticky rice
  • Nam Jim Jaew dipping sauce
  • Lime wedges
  • Fresh cucumber and herbs

Chef’s Tips

  • Marinate overnight for maximum flavor.
  • Charcoal grilling provides the most authentic taste.
  • Butterfly the chicken for even cooking.
  • Avoid grilling over very high heat to prevent burning.
  • A light brushing of coconut milk adds richness and color.

Variations

Isaan-Style Gai Yang

Use extra garlic, coriander root, and fish sauce for a traditional northeastern Thai flavor.

Turmeric Grilled Chicken

Add additional turmeric for a Southern Thai-inspired version.

Spicy Grilled Chicken

Include Thai bird’s eye chilies in the marinade.

Lemongrass Grilled Chicken

Add finely minced lemongrass for a fresh citrus aroma.

Health Benefits

This dish provides:

  • High-quality protein
  • Essential B vitamins
  • Iron and zinc
  • Lower carbohydrates when served without rice
  • Flavorful herbs and spices with antioxidant properties

Serving Suggestions

Gai Yang is traditionally served with:

  • Sticky rice (Khao Niao)
  • Green papaya salad (Som Tam)
  • Grilled vegetables
  • Cucumber salad
  • Thai herb salad
  • Nam Jim Jaew dipping sauce

Storage

Store leftover chicken in an airtight container in the refrigerator for up to 3 days.

Reheat gently in an oven or air fryer to maintain crisp skin.

Leftover grilled chicken can also be used in salads, wraps, and fried rice.

Final Thoughts

Gai Yang (Thai Grilled Chicken) is a true icon of Thai street food, offering juicy meat, smoky charred skin, and a deeply flavorful marinade infused with traditional Thai herbs and seasonings. Whether grilled for a family dinner, summer barbecue, or Thai-themed feast, this dish delivers authentic flavors and satisfying texture in every bite.

Serve it with sticky rice and spicy dipping sauce for the ultimate Thai dining experience.