Combine all ingredients, except for chicken breasts, in a blender. Puree until well combined. Reserve half of puree mixture for sauce. In a food storage bag, combine chicken breasts with half of puree and shake well to coat. Marinate in refrigerator for 3 to 4 hours. Remove chicken from marinade and heat grill to medium-high heat. Cook chicken 4 to 5 min. per side, or until it reaches a 165-degree internal temperature. Warm sauce in pan to desired temperature. Spoon sauce over chicken breast and serve.