In a medium bowl, whisk together 1/4 cup brown sugar, 1/2 cup soy sauce, 1/4 cup rice wine vinegar, 1/4 cup honey, 2 tsp minced garlic, 1/2 tsp ground ginger, and 1/2 tsp pepper.
Reserve about 1/2 cup of the marinade. Place 2 lbs boneless skinless chicken tenders in a large zip-top bag and pour the remaining marinade over the chicken.
Allow the chicken to marinade for at least 30 minutes but you can marinade it for up to 8 hours. While the chicken is marinading, soak the wooden skewers in cold water for at least 10 minutes.
Preheat the grill to medium high heat. Spray the grill grates with a non-stick cooking spray or brush with oil.
Slide the soaked skewers through the 2 lbs boneless skinless chicken tenders lengthwise, placing 3 to 4 chicken tenders on each skewer depending on their size.
Grill the chicken thighs for approximately 5-7 minutes per side until the chicken reaches an internal temperature of 165 degrees F.
While the chicken cooks, whisk 1 Tbsp cornstarch into the reserved 1/2 cup marinade. Pour the mixture into a saucepan and cook over medium-high heat, whisking constantly, until the sauce thickens.
Brush this sauce over the grilled chicken when serving and enjoy!
Garnish with green onions and sesame seeds.