Directions1. Prep the Oven and Pork: Preheat your oven to 425°F (220°C).
In a small bowl, whisk together the Dijon mustard, paprika, salt, oregano, garlic powder, and onion powder to form a paste.
Pat the pork tenderloins completely dry with paper towels and spread the mixture evenly over all sides. 2.
Sear for a Golden Crust: Heat oil in a large, oven-safe skillet over medium-high heat until it shimmers. Carefully add the tenderloins and sear until deeply browned on all sides, about 4 minutes per side. This step creates incredible flavor. 3.
Bake to Perfection: Transfer the skillet to the preheated oven.
Bake for 15 minutes, or until an instant-read thermometer inserted into the thickest part registers 145°F (63°C). A little pink in the center is perfect for a juicy result. 4.
Let It Rest: Move the pork to a cutting board and let it rest for 10 minutes. This is a crucial step that keeps the meat moist and flavorful.
Do not skip it! 5.
Slice and Serve: Slice the tenderloin into medallions against the grain.
Sprinkle with flaky sea salt, if using, and serve immediately.
Don't rush the rest.
Letting the tenderloin rest for 10 minutes before slicing allows the juices to redistribute throughout the meat, ensuring every single bite is succulent.