I make the best baby-back ribs in the world. People buy them and bring them to me to cook.
Try this:
Remove the tough membrane from the bone side of the ribs. Start at the small end, and using a clean dishcloth to grasp the membrane, pull it off. This is important. Don't skip it!
Dry the ribs with a paper towel and apply the following rub:
Combine 1 cup of brown sugar with 1 tsp each of paprika, cayenne pepper, garlic salt, black pepper, and onion salt. Rub on to all sides and let stand one hour at room temp.
Place the ribs uncovered in a smoker and smoke gently for about an hour at 200 degrees. Then wrap two racks together in heavy aluminum foil from the large size box, seal by folding tightly, and slow cook at 225 - 250 degrees for 4 to 4 1/2 hours.
Remove from heat and allow to rest for 1/2 hour. Brush on your favorite sauce and dig in.
They'll be so tender they'll fall of the bone!