01 - Preheat your oven to 400°F (200°C).
02 - Pat the pork tenderloin dry with paper towels. Rub the entire surface with olive oil, kosher salt, and black pepper.
03 - Heat a large oven-safe skillet over medium-high heat. Sear the pork tenderloin on all sides until a deep golden-brown crust forms, approximately 2–3 minutes per side. Remove the pork from the skillet and set aside.
04 - In the same skillet, combine the pomegranate juice, honey, balsamic vinegar, Dijon mustard, minced garlic, ground cumin, ground cinnamon, and cayenne pepper (if using). Bring the mixture to a boil, then reduce the heat to medium and simmer for 8–10 minutes, or until the glaze has reduced by approximately half and has thickened.
05 - Return the seared pork tenderloin to the skillet with the glaze. Spoon some of the glaze over the top of the pork. Transfer the skillet to the preheated oven.
06 - Roast the pork for 15–18 minutes, basting with the glaze halfway through the cooking time. The pork is done when it reaches an internal temperature of 145°F (63°C).
07 - Remove the pork from the oven and allow it to rest for 5–10 minutes. Slice the tenderloin and drizzle with any remaining glaze.
08 - Garnish the sliced pork with fresh pomegranate seeds and chopped parsley before serving.