1Preheat oven to 350 degrees F. Rinse chicken inside and out; place in a roasting pan (or line a 13x9 cake pan with foil.)
2Sprinkle chicken with salt and pepper inside and out. Remove leaves from celery, cut stalks into smaller pieces and stuff into cavity.
3In a small dish, combine onion powder and butter. Place about 2 T. into cavity. Place a couple tablespoons under the skin over breast meat. Spread the remaining butter over the skin.
4Bake uncovered for about 1 1/2 hours or until internal temperature reaches 180 degrees F. Remove from oven and baste with drippings, then cover with foil and allow to rest for about 40 minutes. Serve.
5Nutritional Info: per serving
Total Fat: 26.6g/ Sat Fat: 12.8g
Total Carbs: 1.9g/ Sugars: 0.8g