Treat the whole family to a just-like-grandma’s-roast in an hour with a little help from McCormick Instant Pot Fall Off The Bone Ribs Seasoning Mix. Combined with ketchup and brown sugar, ribs come out of the pressure cooker saucy, tender and ready to devour. Bust out of a dinner rut with fall off the bone ribs. The Instant Pot significantly cuts the traditional cook time of this dish way down, making it an unexpected but welcome weeknight meal! No pressure cooker? Try slow cooker ribs in your crock. Cook eight hours on low or four hours on high per package directions.