1. Pound each chicken breast (and slice in half, if large), to an even thickness, about 3/4 inch, in a heavy duty zipper bag.
2. Add in all remaining ingredients to the bag and let marinate for 30 minutes to an hour.
3. Prepare grill.
4. Place chicken on grill and cook 3 minutes on each side, rotate 90 degrees and then cooke an additional 3 minutes on each side.
5. Optional: baste the top of each filet after removing from the grill.
6. Serve immediately or cold.