Thai Grilled Chicken (Gai Yang)

Ingredients

For 5 servings

• 2 lb / 1 kg chicken thigh fillets ((skinless, boneless) (Note 1))
• 1 large lemongrass stalk (, white part only, reedy outer layers removed, sliced 5mm / 1/5" thick (Note 2 tube paste sub))
• 4 cloves garlic (, peeled (whole))
• 2 1/2 tbsp fish sauce
• 1 tbsp light soy sauce (, or any all-purpose soy or tamari (Note 3))
• 2 tsp dark soy sauce ((Note 3))
• 3 tbsp (tightly packed) brown sugar or palm sugar
• 2 tbsp oil (, vegetable, canola, or any other neutral flavoured oil)
• Nam Jim Jaew (- traditional Thai Dipping Sauce for meat *RECOMMENDED*)
• Lime Sweet Chilli Sauce
• Bottle of sweet chilli sauce
• Lime wedges
• Red chili (, finely sliced (optional))
• Cilantro / coriander leaves ((optional))
• Coconut rice