01 - Whisk together hoisin sauce, honey, soy sauce, oyster sauce, Shaoxing wine, brown sugar, sesame oil, five-spice powder, ginger, garlic, and food coloring in a large bowl until smooth.
02 - Add chicken thighs to the bowl, toss to coat thoroughly. Cover and refrigerate for at least 2 hours, preferably overnight for maximum flavor penetration.
03 - Preheat oven to 425°F. Line a baking sheet with foil and place a wire rack on top.
04 - Remove chicken from marinade, reserving the liquid. Place chicken pieces on the wire rack with space between each piece for proper air circulation.
05 - Roast for 20 minutes to begin the caramelization process.
06 - Baste chicken generously with reserved marinade, flip pieces, and baste again. Return to oven for 10-15 minutes, basting once more, until edges are caramelized and chicken reaches internal temperature of 165°F.
07 - Let chicken rest for 5 minutes to redistribute juices. Slice against the grain, garnish with spring onions and sesame seeds. Serve hot or at room temperature.