Soak chicken in buttermilk 8 hours. Drain and discard buttermilk.
Process stuffing mix and next 4 ingredients in a food processor or blender until fine crumbs.
Dip chicken pieces in butter; roll in stuffing mixture until well coated. Place chicken on a baking sheet.
Bake at 350° for 1 hour and 10 minutes or until golden brown.
NOTE: For testing purposes only, we used Pepperidge Farm Stuffing.