how long do i cook a pork loin tenderloin
1 Place the tenderloin in a roasting pan. 2  Place the pan in the oven and roast for about 15 minutes, or until the internal temperature reaches 145 degrees Fahrenheit (63 degrees Celsius). 3  Allow the pork to rest for 10 minutes before serving. You'll need about 1/2 cup (48 g) of dry rub for every pound of pork tenderloin. 2  Simply spoon the rub over the tenderloin and use your hands to spread it so it covers the entire cut of meat. 3  Consider making a spicy chili rub with chili powder, garlic powder, cumin and pepper.