I am no Chef...but my pork baby-back ribs are to die for. For one rack...or two half racks: Remove the membrane from the underside (a MUST). Salt and pepper generously. Place in the slow cooker....EVEN IF FROZEN. Add water to the slow cooker....about 3/4 of an inch. Turn slow cooker on high for half an hour or so to get temperature up. Then turn down to low.....and slow cook for six hours if ribs were thawed....or 6 3/4 hours if started frozen. Test for tenderness. Ready to eat!
One common tip: NEVER remove the slow cooker lid during the cooking.....as you lose much of the heat...and it has to build up all over again.