01 - Pat the chicken dry and rub evenly with salt. If using, drizzle Shaoxing wine over the chicken pieces and let marinate for 10 minutes.
02 - Arrange the sliced ginger and cut scallions in the bottom of a heatproof plate or shallow dish large enough to hold the chicken in a single layer.
03 - Place the chicken pieces skin-side up on top of the ginger and scallions.
04 - Set up a steamer or large wok/pot with a rack and lid. Bring water to a boil.
05 - Place the plate of chicken onto the steaming rack. Cover and steam over medium-high heat for 30–35 minutes, or until the chicken is cooked through (internal temperature should reach 165°F).
06 - While the chicken steams, heat neutral oil in a small pan over medium heat until shimmering. Add minced ginger and cook for 1 minute. Add sliced scallions and cook for 30 seconds. Remove from heat. Stir in soy sauce, sesame oil, sugar, and white pepper.
07 - When the chicken is done, remove from the steamer. Discard the cooked ginger and scallion from underneath if desired. Pour any accumulated chicken juices into the sauce and stir to combine.
08 - Slice or arrange the chicken on a clean serving plate. Spoon the ginger-scallion sauce evenly over the chicken. Garnish with extra sliced scallions if desired. Serve warm.