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After roasting and carving a chicken place the 'frame' and any extra bones, giblets etc. into the Instant Pot. Add all other ingredients.
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Fill water to the 4 liter mark. You can let it sit for an hour (this gives the apple cider vinegar time to do it's job of releasing more minerals from the bones) or just close the lid and cook immediately. Place the release valve in the sealed position (don't forget this step!) and then set to pressure cook "high". You can cook for as little as 30 minutes to make broth. I like to set the timer for 120 minutes (2 hours) for a richer, darker broth.
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Now you walk away and let the Instant Pot work it's magic!
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When the cooker is done it will go into warm mode and stay there until you turn it off!
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So you can leave the house, go to sleep, whatever and it will stay warm till you are ready.
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Press 'cancel' and use an oven mitt or wooden spoon to release the valve.
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Carefully remove the inner pot and pour broth through a strainer into a large bowl. After broth cools, pour into mason jars and ice cube trays. I like to fill mason jars 3/4 full and transition from fridge to freezer to prevent cracking.