Clean and prepare the chicken thoroughly.
Mix soy sauce, minced garlic, oligosaccharide syrup, and pepper to make the marinade.
Coat the chicken with the marinade and let it sit for 20 minutes.
Heat cooking oil in a pan and grill the chicken on both sides over medium heat.
Pour in the remaining marinade and simmer until fully cooked.
Finish by sprinkling sesame seeds and chopped green onions.