Roast bones on a lined pan at 400 degrees for 30 minutes. Add bones to Instant Pot, add all other ingredients. Fill to max line with water.Seal, Pressure Cook at High Pressure for 2 hours 30 minutes. Natural Release. Take lid off and let cool 10-15 minutes before straining. Ladle into containers, or use immediately. Refrigerate overnight and then freeze. *Tip: use dry erase on plastic lids to name and date.