Place ribs in a slow cooker and pour 3/4 of the bottle of BBQ sauce on top. With your hands rub the ribs until they are completely coated with the sauce

Slow cook on low for 8-10 hours or on high for 4-6 hours

When time is up, place ribs on a parchment paper or aluminum paper lined sheet pan

Pour the sauce from the slow cooker (I degrease it first) and add the remaining of the BBQ bottle on a small pot. Let it simmer until reduced in size and the liquid thickens (about 5 minutes)

Add the reduced sauce on top of the ribs

Broil for 2-3 minutes until brown and bubbly