Make sure any packets of organs or innards are removed from the chicken. Place the whole chicken in the pot
Add the vegetables, seasonings, and water
Cook in a 210°F oven for ~2 hours
After the first 2 hours of cooking, remove the chicken and pull off the cooked meat for use in other dishes. Return the bones and skin to the pot and continue cooking for another 10-12 hours
Strain the stock/broth through a fine mesh strainer lined with cheesecloth and discard the bones, vegetables, and skin
Refrigerate for 3-5 days or freeze for up to 6 months