01 - Pat chicken thighs dry with paper towels and season lightly with salt and black pepper on both sides.
02 - In a medium bowl, whisk together sweet chili sauce, soy sauce, honey, rice vinegar, garlic, ginger, and red pepper flakes until thoroughly combined.
03 - Add chicken thighs to the bowl and toss to coat evenly. Let marinate for at least 10 minutes, or refrigerate for up to 2 hours for deeper flavor penetration.
04 - Preheat air fryer to 400°F for 3 minutes to ensure proper crisping.
05 - Place chicken thighs skin-side up in the air fryer basket in a single layer, ensuring pieces are not touching for optimal air circulation. Reserve remaining marinade for glazing.
06 - Air fry chicken for 14 minutes to render fat and begin crisping the skin.
07 - While chicken cooks, transfer reserved marinade to a small saucepan. Bring to a boil, then reduce heat and simmer for 2-3 minutes until slightly thickened and syrupy.
08 - Brush chicken thighs generously with the thickened glaze. Return to air fryer and cook for an additional 4 minutes, or until skin is crispy and internal temperature reaches 165°F.
09 - Remove chicken from air fryer and let rest for 2-3 minutes to allow juices to redistribute. Garnish with chopped cilantro or green onions and sesame seeds before serving.