Follow these steps to create a dish that will become a staple in your home, just as it has in mine:

1. Preheat your oven to 375°F (190°C) and prepare a baking dish.
2. Season the pork tenderloin with salt, pepper, and fresh rosemary.
3. In a skillet over medium heat, add the olive oil. Once hot, sear the pork on all sides until it’s golden brown, about 8 minutes total.
4. Transfer the pork to your baking dish. In the same skillet, pour the apple cider and Dijon mustard, stirring to combine and scrape up any browned bits. Pour this mixture over the pork.
5. Cover the baking dish with foil and bake for 25–30 minutes, or until the pork reaches an internal temperature of 145°F (63°C).
6. While the pork is baking, peel and cube the sweet potatoes. Boil them in a large pot of salted water until tender, about 15 minutes.
7. Drain the sweet potatoes and return them to the pot. Add milk, butter, cinnamon, and brown sugar. Mash until smooth and creamy.
8. Once the pork is done, let it rest for 5 minutes before slicing. Serve it alongside the mashed sweet potatoes, drizzled with the apple cider reduction from the baking dish.

Cooking is an art, and these steps are your paintbrush. Remember, it’s the little details, like letting the pork rest, that elevate a dish from good to unforgettable, a lesson I learned from watching my father take pride in his craft.