In a small bowl mix together the dry rub ingredients until well combined.
Pour the beef broth, liquid smoke, Worcestershire sauce, apple juice into a large bowl, add the ribs and marinate for 1-3 hours.
Remove the ribs from marinade, and pat dry.
Spread the dry rub evenly on both sides of the ribs and massage into the meat.
Add the marinade liquid into the bottom of your Instant Pot.
Add the ribs to the Instant Pot and pour over the BBQ sauce.
Lock the lid on the pressure cooker.
Cook on manual, high pressure, for 45 minutes. After cooking is finished, do a 15-20 minutes natural pressure release, after which release manually any remaining pressure.
Remove ribs and serve immediately with extra BBQ sauce.