Combine the ingredients in a zip lock bag and add the chicken. Remove all the air and flatten the chicken. Put it on a cookie sheet to keep the chicken flat and freeze.
To thaw: Place the chicken in a sink with tempid water and let it sit for 20 - 30 minutes. Once thawed (or almost thawed) remove from the water and place in the fridge. You do not want the chicken to come to room temperature for fear of bacteria setting in.
Place the chicken on the barbecue and cook for 12 - 15 minutes or until done.