Baking low and slow makes these oven-baked ribs fall off the bone tender. Once baked, we add our sweet and spicy BBQ sauce to the ribs, but you can use whatever you love. For the most tender ribs, we remove the thin membrane covering the back of the rack. Depending on where you purchased the ribs, this may already be done for you. If not, instructions are in the tips below the recipe.
2 to 2 ½ pounds baby back pork ribs
1 tablespoon olive oil
1/4 cup finely diced onion
1/2 teaspoon ground cumin
1/2 cup ketchup
1 tablespoon hot chili sauce like Sriracha
2 tablespoons light brown sugar
1 tablespoon apple cider vinegar
Salt and ground pepper, to taste
Preheat the oven to 275°F (135°C). Set aside a large roasting pan or rimmed baking sheet and foil.
If your ribs still have the thin membrane covering the back of the rack, remove it. The tips section below explains how.
Season both sides of the ribs generously with salt and pepper. If you are using a spice rub, rub it over the ribs.
Place the ribs, meatiest-side up, in a large roasting pan. You may need to cut the ribs in half to fit them into the pan. Cover the pan or baking sheet tightly with aluminum foil. It is important they are well sealed inside the foil. If your foil does not wrap all the way around your baking sheet, wrap the rack in tight foil packets and place them on the baking sheet.
Bake the ribs until the meat falls easily from the bones, 2 ½ to 3 ½ hours. I check the ribs after 2 hours to see how they’re doing. Ribs are ready to come out of the oven when the meat is cooked through and tender. To check, pierce them with a sharp knife. There should be little to no resistance. You can also gently bend the ribs. If the meat looks like it will easily pull away from the bone, they’re ready.
While the ribs bake in the oven, make the barbecue sauce. Heat the olive oil in a saucepan over medium heat. Add the onions and cook until soft and translucent, 5 to 8 minutes.
Stir in the cumin and cook for an additional 30 seconds.
Add the ketchup, hot chili sauce, brown sugar, and apple cider vinegar. Stir to combine, season with salt, then cook for 2 minutes. Set aside while the ribs finish baking.
Remove the ribs from the oven, discard the aluminum foil, and generously brush both sides with barbecue sauce.
(Optional) Move an oven rack near the top of the oven. Turn the broiler to high and broil the ribs until the barbecue sauce begins to caramelize, 3 to 4 minutes. Keep a close eye on the ribs while they broil so the sauce does not burn.