01 - Pierce the chicken skin all over with a fork to allow marinade penetration. Place the chicken in a large non-reactive bowl or heavy-duty resealable bag.
02 - Whisk together Shaoxing wine, light and dark soy sauces, sugar, salt, five-spice powder, grated ginger, minced garlic, and sesame oil in a medium bowl until the sugar and salt are fully dissolved.
03 - Rub the marinade thoroughly over the entire chicken, both inside and out. Stuff the cavity with the 2-inch scallion pieces. Marinate for at least 1 hour at room temperature, or preferably overnight in the refrigerator for optimal flavor penetration.
04 - Position the oven rack in the center position and preheat to 400°F.
05 - Remove the chicken from the refrigerator and allow it to come to room temperature for 20-30 minutes. Place the chicken breast-side up on a V-shaped roasting rack set over a heavy roasting pan to catch drippings.
06 - Combine honey, maltose or corn syrup, and hot water in a small microwave-safe bowl. Microwave for 15-20 seconds and stir until smooth and fully combined.
07 - Brush the entire surface of the chicken with the warm basting liquid, ensuring even coverage for proper caramelization.
08 - Roast the chicken for 50 minutes, basting generously every 15 minutes with the remaining basting liquid to build a deep, glossy glaze.
09 - Increase the oven temperature to 425°F. Continue roasting for an additional 10-15 minutes until the skin is deeply caramelized and crispy. Monitor closely during the final minutes to prevent scorching.
10 - Remove the chicken from the oven and transfer to a cutting board. Let rest for 10 minutes to allow juices to redistribute throughout the meat.
11 - While the chicken rests, whisk together light soy sauce, black vinegar, sugar, sesame oil, sliced chili pepper, and minced scallion in a small serving bowl until the sugar is dissolved.
12 - Carve the chicken into serving pieces and arrange on a platter. Serve immediately with the dipping sauce on the side.