In a small mixing bowl, combine the light soy sauce and Chinkiang black vinegar.
Add the granulated sugar and stir until fully dissolved.
Whisk in the minced garlic and grated ginger.
Add the chili oil and toasted sesame oil, stirring to emulsify slightly.
Garnish with finely sliced scallions.
Allow the sauce to sit for 5 minutes before serving to let flavors meld.