Preheat oven to 425 degrees F. Remove giblet bag from cavity. Rinse chicken and pat dry. Stuff the chicken cavity with peeled onion or split lemon. Rub skin with minced garlic, salt and pepper. Roast in oven for approximately 10 minutes per pound, until juices run clear. The temperature of chicken should reach approximately 160 degrees. Let chicken sit to allow juices to reabsorb. Carve and serve.
Remove grease from the roasting pan using a large spoon, but leave brown bits and juices. On stove-top place pan over medium heat. Add chicken stock. Scrape up bits and bring to a simmer. Season and serve with carved chicken.