If you have time, let chicken marinate in buttermilk before roasting. This makes it even more tender and adds tang, too! Place chicken and buttermilk mixture in a large plastic bag. Push chicken down into marinade, then squeeze out as much air as possible from bag. Seal tightly with an elastic band as close to chicken as possible. Place in a large bowl. Refrigerate 4 hours or overnight. Then proceed with recipe as written.