Stir the sauce and save a few Tablespoons of marinade sauce. Add the rest of the marinade to the chicken bag, squish. Marinade for 1 hour, up to 24 hours. Grill on medium to high heat for 15 min. until done, turning to cook each side. Grill pineapple slices for 4-5 min. Meanwhile, on the stovetop, mix rice, coconut milk mixture, and ¼ C. of water. Bring to a boil, reduce heat to low, cover and cook for 20 minutes. Drizzle sauce over chicken and serve with pineapple on coconut rice.