Make a dressing like you would to stuff a chicken/turkey.
Rip or cube day old (but not dried) bread up and put into a bowl. Add finely diced onion, green (or red) pepper, minced garlic or garlic powder, poultry seasoning or sage, parsley, a pinch of oregano, etc. (to your taste - but make sure there are onions in it as they add a lot of taste). You want a moist dressing that will clump a bit (not wet though) so add a bit of water or broth if it feels to dry.
You will need about a cup of dressing per rib slab.
Need a roll of wide heavy duty aluminum foil.
Cut butcher type/cotton string - 2 per rib slab - roughly eighteen inches long.
Lay the rib flat, bone side up, on your work surface. (do these one at a time)
Lay dressing down the length of the rib, covering completely and 'packing' it together.
Some will fall off as you are rolling, just keep slapping it back on; it takes some practise to do this easily.
Roll the rib from the boneless end in, keeping it as tight as you can.
When you have it rolled up, you need to tie the string around the outside. This part is best done with a 'lovely assistant', until you get the knack of it! Lay the string on your surface and set the rolled rib on the middle of it, about 1/2 to 3/4 inch in from the edge of the meat. Pull the string up each side of the roll and tie securely on top. Do the same with the second string on the other side of the rib. You will have a pinwheel type of affair when you are done. At this point you can gently 'tuck' some of the dressing that fell off during the roll, and is now all over your counter, into the little 'seams' of the pinwheel.
Tear off a big square of tin foil and set the rib in the centre, angling between two corners.
Bring the corners on the 'flat' side of the roll up to meet over the top.
Fold over foil in small folds to seal the meat.
Bring the other two corners up and over and do the same.
Repeat for all the slabs.
I cook my ribs on the off side of the BBQ, at around 275ºF for about 3 hours, turning them occasionally. If you find that one has sprung a leak grab another piece of foil and wrap over the original piece. You want to keep all the moisture in as that is what makes these so tender.