Place chicken in a resealable container or bag. Add the dressing. Seal and refrigerate for at least one hour.
Fire up your grill with the Vortex insert. Let the coals get good and hot.
Remove the chicken from the marinade and shake off any excess.
Combine the pepper, flour and salt in a pie plate, bowl or baggie. Add the chicken and coat well.
Transfer chicken to your grill around the Vortex. Do not let the pieces overlap or touch.
Cook for approximate 45 minutes or until the chicken is done. Test for 165 F in several places then remove.
If desired, lightly brush the chicken with oil and let cook another 5 minutes. This will produce even crunchier chicken.
Let cool slightly and serve.