Sounds like they are what we call St Louis cut, The meat and Cartilage that connects the Ribs to the Sternum are cut away, leaving just the bones. Below is a pic of mine. The cooking times are the same. Here is some info...JJ
Smoked Ribs as easy as 3-2-1
A full rack of Spare Ribs will take about 6 hours at 225*F...The 3-2-1 smoked rib recipe is a good way to smoke ribs and tends to turn out perfect ribs every time whether you are using the meatier Full rack spare rib or the Saint Louis cut. Baby Back ribs use a 2-2-1 method. The ribs are smoked at 225 - 250 degrees for best results...
The 3 stands for the 3 hours that you initially smoke the ribs with nothing but your favorite rub on them and some smoke with your favorite hardwood such as hickory, apple, pecan, etc. After the 3 hours you remove the ribs and quickly double wrap them in heavy duty foil.. just before you seal them up add some Foiling Juice or Apple Juice and close the foil leaving some room around the ribs for the steam to be able to flow around the meat and the juice to braise the meat which Flavors/Tenderizes it.
The ribs cook in the smoker wrapped for 2 hours undisturbed. There is no need for Smoke at this point... After 2 hours remove the ribs from the smoker, unwrap, saving any juices in the foil, and place back into the smoker for the final 1 hour, with smoke if you wish.This firms them up, creates a nice Bark and finishes the cooking process. You can add a glaze or sauce at this point if you like. The meat will be pretty close to fall off the bone and be extremely juicy, tender and flavorful...JJ
Foiling Juice / Sweet Pulled Pork Finishing Sauce
For each Rack of Ribs Combine:
1T Pork Rub, yours
1/2 Stick Butter
1/2C Cane Syrup... Dark Corn Syrup...or Honey
1/4C Apple Cider...or Juice
2T Vinegar, 2T Mustard and 1/4C Ketchup to make it more of a KC Style Glaze.
Simmer until a syrupy consistency.
Allow to cool for 5 minutes, pour over foiled Ribs and
run your 2 hour phase of 3-2-1. For the last phase return
the ribs to the smoker BUT reserve any Juice remaining
in the Foil. Simmer the Juice over med/low heat to reduce to a saucy thickness. Glaze the Ribs for presentation or service.
For a Sweet Finishing Sauce for Pulled Pork: Make a Double batch, Butter optional.
Add 1/2 the batch to the Foil Pack or place it in a Pan with your Butt, when the IT hits 165*F.
Cover the pan with foil and continue to heat to 205*F for pulling.
At 205* rest or hold the Butt in a cooler wrapped in towels until ready to serve.
Pull the Pork and place it back in the pan with the pan Juices and any additional reserved Foiling Juice to moisten and Serve...OR... Bag and refrigerate until needed.
When re-heating place the Pulled Pork in a Pan or Crock pot and add reserved Foiling Juice or Apple Cider, as needed to make up the Juice that was absorbed while the pork was refrigerated. Cover and re-heat in a pre-heated 325-350*F oven or on High in the crock pot to 165*F and Serve.
Note: the addition of the reserved Foiling Juice or Apple Cider should make the PP moist but not Swimming.
I was AMAZED...No additional sauce needed. ENJOY...JJ
The meat on the left is what was removed and cut from the Cartilage. The remaining is just the Rib Bones, notice they are flat. If your Ribs ar fairly curved, they are Back Ribs...
Here is the whole Rack before and after cutting...