In a large saute pan, melt the butter over medium heat.
Add chopped onion, celery, and apple.
Cook until vegetables and apple are soft.
Add stuffing mix, parsley, thyme, and sage.
Toss well to coat.
Stir in the broth and mix well.
Cool and use to stuff turkey, following directions for cooking turkey OR spread in a 9x12 baking pan or large cast-iron pan.
Bake at 350 degrees for 30 minutes.