Oh, a question about bone broth, speaking of soup. I spatchcock my chickens before cooking them, removing the spine and freezing it for later. I now have a bunch and want to make bone broth. Should I roast them first or can I just throw them in a pot and boil then simmer them. I'm also planning to throw in the bones of chickens I've cooked and saved for this. Can I use the bones of chickens I've stewed? Or are they already all used up for collagen and flavor? Will add onions, carrots, celery, herbs for flavor and cook several hours on ĺow. Any other tips?