1/4 cup low-sodium soy sauce
2 tablespoons brown sugar
2 tablespoons dry sherry
2 tablespoons rice vinegar
2 garlic cloves, crushed with a garlic press or minced
1 teaspoon finely grated fresh ginger
1/4 teaspoon red pepper flakes
2 pounds skinless chicken thighs
2 teaspoons sesame seeds