01 -
Preheat the oven to 275°F (135°C) and prepare a large roasting pan or rimmed baking sheet along with aluminum foil.
02 -
Remove the thin membrane from the back of the ribs if it has not been removed already. Season both sides generously with salt and black pepper.
03 -
Place the ribs meatiest side down in the roasting pan. Cut the ribs in halves if necessary to fit. Cover the pan tightly with aluminum foil to seal in moisture.
04 -
Bake for 2 ½ to 3 ½ hours until the meat is tender and easily separates from the bones. Check after 2 hours and adjust time if needed. Increase the oven temperature to 300°F (150°C) if undercooked.
05 -
While ribs bake, heat olive oil in a saucepan over medium heat. Sauté onions until translucent, about 5 to 8 minutes. Stir in cumin and cook for 30 seconds. Add ketchup, hot chili sauce, brown sugar, apple cider vinegar, and salt. Simmer for 2 minutes and set aside.
06 -
Remove ribs from oven and discard foil. Generously brush both sides with prepared barbecue sauce.
07 -
Position an oven rack near the top and set broiler to high. Broil ribs until the sauce caramelizes, about 3 to 4 minutes, watching carefully to prevent burning.
08 -
Allow ribs to rest briefly and serve warm, enjoying the tender, fall-off-the-bone texture.