Cornbread without greens

12 tablespoons butter (1 1/2 sticks) 2 cups finely-chopped yellow onions 3 tart apples , cored and chunked, but not peeled (Jonathan, Winesap or Granny Smith)[...]

3 cups coarsely crumbled cornbread 6 slices stale bread, torn in small bits, please use a good quality bread 6 slices cooked bacon, crumbled 2 tablespoons[...]

1 (16 ounce) package ground pork sausage 1 large onion , chopped 2 large celery ribs , chopped 2 lbs pepperidge farms cornbread stuffing mix 1 1/2 cups[...]