Chicken Stock: the modern approach.

 How to cook chicken stock at home:

Place one whole chicken into your slow cooker.

Add three roughly chopped carrots and one quartered onion.

Add enough water to cover the chook.

Turn on to high and reduce to low once simmering.

After 6 hours, notice something black floating in the slow cooker.

Remove foreign object, identify it as a well boiled food moisture absorber liner.
Make sure that the children aren't listening and swear a few times (and stomp your feet if it makes you feel better)

Throw stock in the bin and cry because it smells so damn good.
Have canned soup for dinner instead.

Next day purchase another chook and start again.

Note: you could, if you chose, omit the liner from the recipe and not waste a whole day of cooking time and the expense of a chicken in the process.