Combine the first 6 ingredients (through garlic) in a large zip baggie and add the chicken. Seal and marinate in the refrigerator 4 hours, turning occasionally.
Pre heat your grill.
Remove the chicken from the bag, reserving the marinade. Place the marinade in a small saucepan. Bring to a boil; cook 1 minute.
Place the chicken on a grill rack coated with cooking spray; grill 20 minutes or until done, turning and basting frequently with the marinade. Garnish with lime wedges and green onions, if desired.
Notes
If you are preparing this as a gluten free recipe, be sure to use a brand of soy sauce that is designated as GF.
It's ok to substitute chicken breasts for the chicken thighs.