01 - Combine chicken cubes with vegetable oil, garlic powder, soy sauce, black pepper, and salt in a bowl. Let marinate for at least 10 minutes, or refrigerate for up to 2 hours for deeper flavor.
02 - Thread marinated chicken pieces onto skewers. If using wooden skewers, soak them in water for 20 minutes before threading to prevent burning during grilling.
03 - Heat a grill or grill pan to medium-high temperature, ensuring even heat distribution across the cooking surface.
04 - Place chicken skewers on the hot grill and cook for 10 to 15 minutes, turning occasionally, until chicken is fully cooked through and develops a slight char.
05 - While chicken grills, whisk together mayonnaise, sweet chili sauce, sriracha, honey, and rice vinegar in a bowl until smooth and fully incorporated.
06 - Transfer cooked skewers to a serving plate. Brush generously with Bang Bang sauce or drizzle over the top, then sprinkle with sesame seeds, scallions, and cilantro.