01 - In a large mixing bowl, whisk together the soy sauce, sesame oil, rice vinegar, honey, minced garlic, grated ginger, and black pepper until well combined.
02 - Add the chicken pieces to the marinade and toss thoroughly to coat. Cover the bowl and refrigerate for at least 1 hour, or up to 4 hours for deeper flavor.
03 - Preheat an outdoor grill or grill pan over medium-high heat. If using wooden skewers, soak them in water for at least 30 minutes to prevent burning.
04 - Remove the chicken from the marinade, allowing excess to drip off. Thread the chicken pieces evenly onto the skewers, leaving a small gap between pieces for even cooking.
05 - Place the skewers on the grill and cook for 5 to 7 minutes per side, turning once, until the chicken is cooked through and lightly charred with an internal temperature of 165°F.
06 - While the skewers grill, combine the honey, soy sauce, water, minced garlic, and chili flakes in a small saucepan. Bring to a gentle simmer over medium heat.
07 - Stir in the cornstarch slurry and whisk continuously until the sauce thickens, about 1 minute. Remove from heat and set aside.
08 - Arrange the grilled chicken skewers on a serving platter. Drizzle generously with the honey garlic sauce and garnish with sesame seeds, sliced green onions, and lime wedges.