Pork Loin With Orange

Preparation:

Preparation: Tie up the boneless pork loin, then add salt and pepper. Put it in a saucepan greased with butter with 1 piece of onion and the celery stalk cut into thin slices, 1 small orange peeled and cut into wedges, the orange juice and the wine. Place the meat in the oven at 180 degrees for 1 hour, wetting it from time to time with the cooking sauce.