What is the best way to prepare a delicious pork leg roast for a special occasion?

To prepare a delicious pork leg roast for a special occasion, first marinate the meat with herbs, spices, and olive oil for at least a few hours. Then, roast the pork leg in the oven at a low temperature until it reaches an internal temperature of 145F. Let it rest before slicing and serving for a juicy and flavorful dish.