Oven Roasted Pork Tenderloin

0 Preheat the oven to 425°F.
1 In a small bowl, stir together the chili powder, brown sugar, oregano, paprika, cinnamon, garlic powder, and salt. Rub the spice mixture over both pork tenderloins.
2 In a large oven-safe skillet, heat the olive oil over medium heat until it shimmers and runs easily when you tilt the pan. Add the pork, working in batches if the pan is overcrowded by both tenderloins, and sear for 3 to 4 minutes, until a crust starts to form on the bottom, then flip the tenderloins and sear for 3 to 4 minutes on the second side.
3 Turn the pork one last time, then transfer the skillet to the oven. Roast for 15 minutes, or until an instant-read thermometer inserted into the pork registers 145°F.
4 Remove the tenderloins from the oven and tent them with aluminum foil. Let rest for 5 minutes, then thinly slice, serve, and enjoy!