The bare bones broth cookbook

"Bone broth is one of mankind's oldest foods--and healthiest, boasting one of the most complete nutritional profiles of any food on earth. The collagen, bone, skin, marrow, and fat that is extracted when animal bones simmer in water for hours (or days) are the building blocks of life, containing proteins that help to combat inflammation; boost immunity; strengthen bones; improve hair, skin, and nails; and help a host of digestive issues by promoting optimum gut health." --Amazon.com