1. Place all barbecue sauce ingredients in a small saucepan. Mix well and bring to a boil. Simmer for 10 minutes and remove from heat.
2. Add one and a half cups of the barbecue sauce and a quarter cup reserved liquid to the shredded chicken. Mix together and refrigerate until ready to serve.
3. Set aside the rest of the barbecue sauce and the remaining quarter cup reserved chicken liquid. Stir into the shredded chicken before serving.