In fraying pan, cook bacon, until crisp; remove and crumble; pour off all but 2 tablespoons drippings. Cook celery and onion in drippings until tender. Toss lightly with stuffing mix, crumbs, broth and egg. Fill cavity of turkey loosely with stuffing. Truss; place in roasting pan; cover with aluminum foil. Cook at 325 degrees for about 4 hours (25 minutes per 2.2 pounds) or until tender. Uncover last four hours to brown. Remove turkey to serving platter. Skim fat from drippings; add remaining ingredients. Heat; stir to loosen brown bits. Serve as gravy for turkey.