In a bowl, whisk together the soy sauce, hoisin sauce, Shaoxing wine (or chicken broth), brown sugar, grated garlic, grated ginger, Chinese five spice powder, salt, and red food coloring (if using). Set aside about ¼ cup of the mixture for basting.
5 Tbsp soy sauce, ¼ cup hoisin sauce, 2 Tbsp Shaoxing wine, 2 Tbsp brown sugar, 3 cloves garlic, 1 inch ginger, 1 tsp Chinese five spice powder, ¼ tsp salt, ½ tsp red food coloring