Preheat oven to 375ºF

Season pork with kosher salt, black pepper, and olive oil. Place in oven and brown the outside, then turn the oven down to 275ºF and roast until internal temp is 155°F degrees. Let stand for 10 minutes before slicing.

In a saucepan medium-high, sauté the shallot with oil, then add the cranberries, and sauté. Add the orange zest, orange juice, sugar and red wine and boil. Reduce heat to low and reduce the liquid by half. Once thickened, let it stand on the stove over warm heat

Slice the pork loin and serve the sauce over the meat