This pork tenderloin recipe is a classic French dish. The pork is seasoned with salt and pepper and then seared in a pan. The mustard cream sauce is made with Dijon mustard, heavy cream, and white wine. The sauce is simmered until it thickens and then poured over the pork. The result is a tender and juicy pork tenderloin with a rich and creamy sauce. This dish is perfect for a special occasion or a romantic dinner.