Combine Shaoxing wine, light soy sauce, dark soy sauce, Worcestershire sauce, white pepper, garlic powder, grated ginger (if using), maple syrup, minced garlic, green onion in a small bowl. Mix the marinade thoroughly.
1 Tbsp. Shaoxing wine, 3 Tbsp. light soy sauce, 2 tsp dark soy sauce, 1 Tbsp. Worcestershire sauce, ¼ tsp white pepper, 1 tsp garlic powder, ½ tsp ginger, ¼ cup maple syrup, 2 sprigs of green onion, 4 cloves of garlic