01 - Whisk together honey, soy sauce, vinegar, grated ginger, minced garlic, olive oil, black pepper, and chili flakes (if using) in a bowl until thoroughly combined.
02 - Pat chicken thighs completely dry with paper towels. Place chicken in a shallow dish or resealable bag, pour half the marinade over the chicken, and refrigerate for at least 15 minutes or up to 1 hour for deeper flavor penetration.
03 - Heat a large nonstick skillet over medium-high heat. Add a small amount of oil if needed. Remove chicken from marinade and discard the used liquid. Place chicken in the hot skillet and sear for 3-4 minutes on each side until golden brown.
04 - Reduce heat to medium-low. Pour the reserved unused marinade over the chicken. Cook, turning chicken occasionally, for 10-12 minutes until chicken is cooked through (165°F internal temperature) and the glaze has thickened to a glossy coating.
05 - Transfer chicken to serving plates. Spoon any remaining thickened glaze from the pan over each piece. Garnish with sliced green onions, toasted sesame seeds, and lime wedges as desired.