Preheat oven to 350℉

Place the pork on a baking dish, and sprinkle with salt, pepper, and garlic powder. Top with the onion and celery and pour the red wine over it and bake for 20 minutes

In a saucepan, make the Demi glaze but use ½ cup of red wine as part of the water

When the pork is done, remove it and let it rest. Strain the juice from the pork roast and add to the gravy mix. Simmer until it thickens. Slice the pork and drizzle the sauce over the pork