How to Make It
Step 1: Combine pineapple juice, brown sugar, lime juice, soy sauce, garlic, and green onions in small saucepan and bring to boil for 5 minutes. Carefully pour out 3/4 cup mixture into a bowl to use for marinating the chicken. Allow the marinade to cool.
Step 2: Meanwhile, return saucepan to the stove and boil remaining pineapple mixture until slightly thicken. Remove from heat and allow to cool. Reserve to use as a dipping sauce.
Step 3: Add chicken to the bowl with the cooled marinade. Stir to coat the chicken. Cover; refrigerate for at least 2 hours.
Step 4: Thread chicken pieces onto skewers. Discard remaining marinade.
Step 5: Heat grill to medium heat and oil it with cooking spray. Grill chicken until cooked through, about 5 minutes on each side. Serve with reserved dipping sauce.