Place rotisserie chicken bones and skin into the pressure cooker pot. Remove the leg bones and put them on the sides make it easier to fit inside if needed.
Add the vegetables
If the tray that your rotisserie chicken came in has any remaining juices, be sure to add that to the pot.
Add apple cider vinegar
Add cold water, being sure to not go over the maximum volume recommended on your pressure cooker
Let it sit for about a half hour*
Set pressure on maximum for your pressure cooker and cook for 120 minutes. If you don't have a pressure cooker, use a slow cooker and cook on low overnight.
When finished cooking, after a natural release, remove the lid from the pressure cooker.
My pressure cooker has a saute option that I turn on for about a half hour to condense the chicken broth and reduce the volume
Allow to cool, then using colander, strain the stock into a large container, like a glass bowl.
Place in refrigerator overnight. The next day, skim the fat.
Use the stock for any recipe that calls for it or just sip on it on a cold day like I do!