To cook baby back ribs in the oven, the recommended method is to cook them low and slow for tender, fall-off-the-bone results. Here are the key guidelines:

• Preheat the oven to 275°F (135°C).
• Remove the silver skin membrane from the ribs and apply a spice rub or seasoning.
• Wrap the ribs tightly in aluminum foil to keep them moist.
• Bake the ribs for about 2.5 to 3.5 hours. Check at 2.5 hours to see if the meat is pulling away from the bones, which indicates they are done.
• Optionally, after baking, unwrap the ribs, brush with BBQ sauce, and broil or bake at a higher temperature (around 400°F) for 4-5 minutes to caramelize the sauce

If cooking at higher temperatures, the time decreases but the ribs might be less tender:

• At 300°F, cook for about 2.5 hours.
• At 350°F, cook for about 1.5 to 2 hours

For pre-cooked baby back ribs, reheat at 350°F for 25-30 minutes wrapped in foil, then broil uncovered for 5-7 minutes with BBQ sauce for a glazed finish

. In summary, the best and most common approach is:

• Cook at 275°F for 2.5 to 3.5 hours wrapped in foil for tender ribs.
• Finish with BBQ sauce and broil or bake uncovered briefly to caramelize