Creating the perfect grilled Huli Huli chicken is a straightforward process. Follow these steps for a delicious meal:

1. Prepare the Marinade: In a bowl, combine soy sauce, pineapple juice, brown sugar, rice vinegar, ginger, garlic, sesame oil, black pepper, and red pepper flakes (if using). Whisk until well mixed.
2. Marinate the Chicken: Place the chicken in a resealable plastic bag or a large bowl. Pour the marinade over the chicken, ensuring it’s well coated. Seal the bag or cover the bowl and refrigerate for at least one hour, or overnight for maximum flavor.
3. Preheat the Grill: Preheat your grill to medium-high heat, about 375°F (190°C).
4. Remove Excess Marinade: Take the chicken out of the marinade and let the excess drip off. Discard any leftover marinade.
5. Grill the Chicken: Place the chicken on the hot grill. Cook for about 5-7 minutes on each side or until the internal temperature reaches at least 165°F (75°C) and the outside is nicely charred.
6. Rest the Chicken: Once cooked, remove the chicken from the grill and let it rest for a few minutes to lock in the juices.
7. Garnish: Slice the chicken, and garnish it with chopped green onions and sesame seeds before serving.

These steps ensure your grilled Huli Huli chicken turns out flavorful and juicy every time!