Crack the pork ribs evenly and trim off excess fat.
Roast or bake the meat until it's about halfway done and cooked through.
Remove the bones, then cut the meat into squares.
Put the barbecue sauce into a stockpot on the stove, then bring it to a boil. Reduce the heat to a simmer, about 180 degrees Fahrenheit, but make sure you keep it hot while you're preparing the jars.
Do the same with the broth, warming it and keeping it hot until you're ready to fill the jars.
Pack the hot pork meat into a hot, sterilized jar, leaving about an inch of headspace. If desired, add a half teaspoon of salt to each pint jar (or one teaspoon of salt to each quart jar).
Ladle the hot barbecue sauce and/or broth over the meat, leaving an inch of headspace.
Remove air bubbles, then add more broth if needed.
Clean The jar rims with a damp paper towel.
Put the lids on the jars, then adjust the bands until they are fingertip tight.
Put the jars on the rack in the pressure container. Add two inches of simmering water (about 180 degrees Fahrenheit).
Put the lid on the canner, then turn it to the lock deposition. Adjust the heat to medium high, then vent steam for 10 minutes. Put the weighted gauge on the vent and bring the pressure to 10 lbs.
Process pint jars for 1 hour and 15 minutes or quart jars for 1 hour and 30 minutes.
Turn off the heat, then cool the canner to zero pressure.
After five minutes, remove the lid, then let the jars cool inside the canner for another 10 minutes.
Take the jars out of the canner. Do not retighten loose bands (these can be removed if desired). Cool the jars for another 12 hours, then check the seals.
Label and store the jars.