Follow these simple steps to create your own Juicy Japanese Chicken Yakitori:

1. Prep Skewers: If using bamboo skewers, soak them in water for at least 30 minutes to prevent burning during cooking.
2. Cut Chicken: Slice the chicken thighs into bite-sized pieces, around 1-2 inches in size.
3. Make Tare Sauce: In a small saucepan, combine soy sauce, mirin, sake, sugar, garlic, and ginger. Heat over medium heat until the sugar dissolves, then simmer for about 5 minutes until slightly thickened.
4. Skewer Chicken: Thread the chicken pieces onto the soaked skewers, leaving a little space between each piece for even cooking.
5. Preheat Grill: Preheat your grill or grill pan over medium-high heat.
6. Cook Skewers: Place the skewers on the grill and cook for about 3-4 minutes on each side, brushing with tare sauce during the last few minutes of cooking.
7. Check for Doneness: Ensure the chicken is cooked through and has a nice char. The internal temperature should reach 165°F (75°C).
8. Remove from Heat: Once cooked, remove the skewers from the grill and let them rest for a couple of minutes.
9. Serve with Tare Sauce: Drizzle any remaining tare sauce over the skewers before serving.
10. Garnish: Sprinkle chopped green onions on top for an added burst of flavor and color.

These steps will guide you through creating this delicious dish with ease and confidence.