In the evening fill a large stock pot with
bones, 2 onions halved, 1-2 heads of garlic halved, 2-4 carrots, 2-4 stocks of celery
Then fill the pot with enought water to cover the bones.
Finally, add
2 Tbsp apple cider vinegar, 1 Tbsp peppercorn, 1-2 bay leaves
Place the pot on the stove and bring it to a boil.
For the first 1-2 hours, check the broth occasionally and scoop off any skin that is on the top.
After the first two hours, reduce the temperature to low and put a lid on the pot. Allow it to simmer overnight for 12-24 hours.
Remove the pot from the burner and allow it to cool down.
Remove the large bones from the pot with tongs and then strain the broth thorugh a fine mesh strainer into a clean glass container with a lid.
Place a hand towel down in the fridge and place the containers of broth on top of the towel and allow them to cool overnight until the fat has solidified on top.
When you are ready to can the broth, skim the solidified fat off the top and dump the broth into a clean large pot.
Bring the pot of broth to a boil.
Meanwhile, prepare your pressure canner and jar per their instructions.
Ladle the hot broth in to the warm jars leaving a 1 inch head space.
Wipe the rims clean and then add the lids and rings. Tighten till they are finger tight.
Place the jars in the boiling pressure canner and can according to your elevation and jar size. For me, I can quart-sized jars at 11 psi for 25 minutes.
Allow the canner to depressurize and slowly remove the lid to prevent siphoning.
Transfer the jars to a towel on the counter and allow them to cool for 12-24 hours. Then, remove the rings, wipe down the jars, label them, and place them in your pantry.