8 boneless skinless chicken breast halves (about 2-1/2 pounds)
In a bowl, combine the first seven ingredients; remove 3/4 cup for basting; cover and refrigerate. In a large resealable plastic bag, place the chicken and remaining marinade. Seal bag and turn to coat, refrigerate for 4 hours or overnight.
Drain and discard marinade. Grill chicken covered, over medium heat for 3 minutes on each side. Baste with reserved marinade. Grill 3-4 minutes longer on each side or until juices run clear, basting several times.