I use whole chickens for this process to save time and ultimately money. Bone broth is very healing and I recommend using it often.
Place the chicken in a stock pot and cover with cold water. Add chopped onion to the pot. You may also add the carrots and potatoes at this point. Bring to a boil and then turn down to simmer on low for at least 2-3 hours. When the cooking time is finished you may pull the chicken off the bones and remove the vegetables from the liquid. At this point you can add the bones back to the pot and continue to cook on low for a couple of more hours to pull all the mineral content from the bones to stock. Or you may be finished. Leave the stock to cool for an hour or so and then pour into freezer safe containers. Pull this out of the freezer as needed.