Cut chicken into bite-sized pieces and set aside.
In a bowl, mix soy sauce, brown sugar, minced garlic, and minced ginger to create the yakitori sauce.
Thread chicken pieces onto soaked wooden skewers.
Preheat the grill to medium-high heat.
Grill the chicken skewers for 5-7 minutes per side, brushing regularly with the yakitori sauce for a glossy finish.
Cook until chicken is fully cooked and slightly caramelized.
Remove from grill and let rest for a couple of minutes before serving.
Serve hot with steamed rice or as a delightful appetizer.