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Fall-off-the-bone oven-roasted Cajun pork spare ribs

Salty, sweet, herby and spicy. The two secrets to making this dish? First, sufficient marinating time. Second, roasting at a low temperature.
Cajun pork spare ribs
Pork recipe by Connie Veneracion | Last updated: 08.15.2025
Prep: 10 minutes mins
Cook: 2 hours hrs 10 minutes mins
Marinating 2 hours hrs
Total: 4 hours hrs 20 minutes mins
Servings: 6 people
Course: Main Course, Picnic
Cuisine: American
Label: Pork ribs
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Connie’s notes

Spare ribs? Not baby back ribs? Well, I’m partial to spare ribs because there is more fat which makes the meat beautifully moist. No reason why you can’t substitute baby back ribs if that is your preference.
Not a fan of ribs? You may choose a slab of bone-in pork belly although I would recommend that you cut off the rind. You may even go boneless although you will need to double the amount of seasonings. What I won’t recommend is substituting a lean boneless cut of meat.
This is a fairly easy dish to make. You take your rack of ribs, rub the Cajun spice mix on the entire surface and you leave the meat to marinate for at least two hours. That’s the minimum. You’ll get better results though if you marinate the ribs in the fridge overnight.
The cooking is done in two stages at different temperatures. During the first stage, the ribs cook in a foil tent at 300F. That’s the part when the meat becomes tender. And you do want the foil tent so that the meat cooks with plenty of moisture. That’s how it stays succulent.
But won’t the steam give the ribs a boiled meat texture? That’s why you need to cook it a second time. To give the ribs a light sticky crust, you discard the foil, brush the ribs with a glaze and return the rack in the oven where it cooks at 400F for another ten minutes.
We do prefer to make our own Cajun spice mix (the ingredients are given below) but it is quite alright to use store-bought. Whichever you decide to use, make sure that you give the ribs a few hours to soak up the spice mix before sticking it in the oven.

Ingredients

Cajun spice mix

  • ½ teaspoon freshly ground black pepper
  • 1 teaspoon onion powder
  • 1 ½ teaspoons dried oregano
  • 1 ½ teaspoons smoked paprika
  • 2 teaspoons garlic powder
  • 1 ½ teaspoons cayenne powder chili powder or flakes may be substituted
  • 1 ½ teaspoons dried thyme
  • 3 teaspoons sea salt or 1 ½ teaspoons refined salt

Pork ribs

  • 1 rack pork spare ribs about 2 kilograms / 4.4 pounds total weight
  • ¼ cup Cajun spice
  • 1 tablespoon salt
  • ¼ teaspoon dried tarragon
  • 1 teaspoon dried rosemary
  • 1 teaspoon lemon and pepper seasoning available at the grocery

Glaze

  • 2 heaping tablespoons dark brown sugar
  • 2 tablespoons plain mustard
  • 2 tablespoons ketchup

Garnish

  • sliced chilies
  • chopped parsley

Instructions

  • Make the Cajun spice mix by whisking together all the ingredients (see notes after the recipe).
  • Wipe the rack of ribs with paper towels.
  • Whisk together the Cajun spice mix, salt, tarragon, rosemary and lemon and pepper seasoning. Rub all over the ribs.
  • Wrap the ribs with cling film and allow to marinate for at least two hours in the fridge (or overnight for best results).
  • Preheat the oven to 300F.
  • Take the ribs out of the fridge. Discard the wrapping.
  • Take a large piece of aluminum foil and place it on a baking tray. Lay the ribs on the foil. Take another large piece of foil and lay over the ribs. Gather together the sides of the top and bottom sheets of foil and crimp to seal in the ribs. Make sure that there are air pockets inside the package. You want steam to build up inside to help keep the meat moist.
  • Cook the ribs in a 300F oven for two hours.
  • Meanwhile, whisk together in the ingredients for the glaze.
  • Take the ribs out of the oven.
  • Turn up the temperature of the oven to 400F.
  • Carefully unwrap the ribs (be careful of the steam that will escape!) and discard the top layer of foil.
  • Brush the glaze all over the ribs.
    Brushing sauce on rack of pork spare ribs
  • Put the ribs back into the oven and leave for 10 minutes or until the glaze turns into a light sticky crust.
  • Take the ribs out of the oven. Rest for a few minutes. Cut between the bones. Plate up, sprinkle with sliced chilies and parsley, and serve.
    Fall-off-the-bone oven-roasted Cajun pork spare ribs
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About Connie Veneracion

Home cook and writer by passion, photographer by necessity, and good food, coffee and wine lover forever. I create, test and publish recipes for family meals, and write cooking tips and food stories. More about me and my umami blogs.

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