Prep the Pan: Lightly coat a large non-stick pan or a well-seasoned cast iron skillet with neutral oil or cooking spray.
The Essential Sear: Place the chicken wings in the pan in a single layer. Turn the heat to medium and sear for 3–4 minutes per side (Tip: Don't skip this! You need to render the fat and get that golden-brown colour before adding any liquids, or the wings will just boil and turn out rubbery).
Build the Glaze: Once the wings are browned, add the minced garlic, shallots (if using), and Thai chilies. Stir for about 30 seconds until fragrant.
Simmer: Pour in the fish sauce, soy sauce, brown sugar, and 3 tbsp of water. Season with salt and black pepper to your liking.
The Reduction: Lower the heat to medium-low. Let the wings simmer for about 15 minutes. Stir occasionally to ensure every wing is getting bathed in the sauce.
The "Sticky" Phase: As the water evaporates and the sugar caramelizes, the sauce will transform into a glossy, thick glaze. Once the sauce coats the wings beautifully and the pan is nearly dry, they are ready.
Finish & Serve: Garnish with fresh cilantro and green onions. Serve immediately with lemon wedges to cut through the sweetness.