Pork tenderloin with ginger cider sauce

Directions

1. Preheat oven to 350 F. Remove the silver skin from the pork and sprinkle on all sides with kosher salt and freshly ground black pepper.
2. In a large cast-iron skillet, heat 2 tablespoons cooking oil over high heat. Add the pork tenderloins and brown on both sides.
3. Transfer the skillet to the oven. (If you don't have an oven-proof skillet, transfer the pork to a baking dish. Don't wash out the skillet though, you will need it later for the sauce.)
4. Bake the pork until a meat thermometer registers 140 F. (For me this is about 12-15 minutes normally.) Take the pork out of the oven and transfer to a cutting board to rest.
5. Pour off any of the juice from the skillet (or baking dish) into a measuring cup. Add enough apple cider to make 1-1/2 cups of liquid.
6. Set the skillet over medium heat. Add a few drops of oil, then the ginger. Scrape the browned bits from the pan.
7. When the ginger becomes fragrant, pour in the liquid and increase the heat to medium-high. Continue scraping the browned bits and bring the mixture to a simmer. Continue simmering to reduce the liquid by half.
8. When the liquid has thickened, add salt and pepper to taste. Add the lemon juice. Remove from heat and swirl in 2 tablespoons of butter.
9. Slice the pork and transfer to a serving dish. Pour the sauce over it.