In a medium bowl, mix together ¼ cup brown sugar, ½ cup soy sauce, ¼ cup rice wine vinegar, ½ cup honey, 2 teaspoons minced garlic, ½ teaspoon ground ginger, and ½ teaspoon pepper until well combined.
Reserve approximately ½ cup of the sauce mixture, then place 2 pounds boneless skinless chicken tenders in a gallon-size bag and pour the remaining sauce over the chicken to marinate.
Allow the chicken to marinate for at least 30 minutes or up to 8 hours.
While the chicken is marinating, soak wooden skewers in cold water for at least 10 minutes.
Preheat the grill to medium-high heat and lightly grease the grates with non-stick spray or oil.
Thread the marinated chicken tenders onto the skewers lengthwise, placing about 3–4 tenders per skewer depending on size.
Grill the chicken for 5–7 minutes per side until the internal temperature reaches 165°F.
While the chicken is cooking, combine the reserved ½ cup sauce with 1 tablespoon cornstarch in a saucepan.
Heat over medium-high heat, whisking constantly until the sauce thickens.
Brush the thickened sauce over the grilled chicken before serving.
Garnish with green onions and sesame seeds if desired, then serve.
Notes
Refrigerate any leftover chicken for up to 5 days. You can also make this recipe with chicken breasts or chicken thighs instead. Just cut the chicken into strips before placing them on the wooden skewers.