how long do you cook pork tenderloin in the oven
Grilling pork tenderloin. 1  Always cook the tenderloin over indirect heat. Depending on its size, it usually takes 20 to 30 minutes over medium-high heat. 2  Flip the tenderloin every 4 minutes until the internal temperature reaches 135ÂºF to 140ÂºF. 3  Let the tenderloin cool before serving.