Bone broth has enjoyed a surge in popularity due to its association to the Paleo diet. If our Paleolithic ancestors had had a pressure cooker, they'd certainly have used this recipe to get nutritious, hearty bone broth for all their soup and stew needs. The longer you cook this, the richer it gets, so feel free to go long on this one! Because it's sealed in the pressure cooker, you don't even have to monitor the liquid levels. Bone broth can also be enjoyed as a hearty and healthy morning ...