Add all ingredients to a pressure cooker and fill with filtered water till it hits the max fill line.
Pressure cooker on high for 4 hrs.
Optional step: Hit cancel then hit soup/broth for another 4 hrs.
Hit cancel and let it sit in the pressure cooker for another 1-2hrs to naturally depressurize.
Release pressure completely, strain and chill broth in fridge before transferring into souper cubes or freezer safe containers.
