Pulled Chicken - Dairy Free

We make this recipe often, when in search for something easy for dinner.

Serves 4-6

4 boneless skinless chicken breasts, frozen
1 onion
1 (500 ml) bottle barbecue sauce, vinegar based, such as Diana's
Kaiser rolls

1. Spray a crock pot with cooking spray.
2. Add the chicken, onion and about half the bottle of barbecue sauce.  Cook for 2 1/2 hours on low.
3. Remove the chicken and shred on a plate.  Return to the crock pot.  Add half the remainder of the barbecue sauce.  Turn heat to high and cook 1 1/2 - 2 more hours.  Leave on warm until ready to serve.

You may wish to add coleslaw to the bun to serve this.