Rinse the chicken thoroughly and pat it completely dry with paper towels.
In a small bowl, mix the ginger puree (blended ginger and water), Shaoxing wine, and salt.
Rub the marinade mixture all over the chicken, covering both the inside cavity and the outside skin.
Apply the 1 tablespoon of oil over the chicken skin to seal in moisture.
Let the chicken rest and marinate at room temperature for 20 minutes.
Prepare a steamer with water and bring it to a boil. Place the chicken on a heat-proof plate and set it into the steamer.
Cover and steam on medium-high heat for 40 minutes, or until the juices run clear and the internal temperature reaches 165°F.
While the chicken steams, prepare the sauce. In a heat-proof bowl, combine the sesame seeds, minced garlic, chopped scallions, and red chili flakes.
In a small pan, heat the 6 tablespoons of neutral oil until it begins to smoke.
Carefully pour the smoking hot oil over the aromatic mixture in the bowl to sizzle and release the flavors.
Stir in the Chinkiang vinegar and soy sauce.
Remove the chicken from the steamer, let it rest briefly, carve, and serve with the chili garlic sauce.