Begin by cutting the chicken into bite-sized cubes, roughly 1 to 1.5 inches.

In a bowl, combine teriyaki sauce, minced garlic, kosher salt, black pepper, and crushed red pepper flakes to make the marinade.

Toss the chicken cubes into the marinade and refrigerate for at least 30 minutes.

Preheat your Blackstone griddle or grill to medium-high heat.

Thread the marinated chicken pieces onto skewers, leaving space between each piece.

Grill the skewers for approximately 10-15 minutes, turning occasionally until golden-brown and cooked through.

Brush with additional teriyaki sauce during the last few minutes of grilling.

Remove from grill, let rest, and garnish with fresh cilantro before serving.