For 9x13 size dish approx.
1 1/2 cups chopped celery
1/2 cup finely diced onion
more or less depending on your tastse
partially cook in water (add a chicken or vegetable boullion cube) season with butter 2 TBSP, while preparing the bread etc.
If using unseasoned bread crumbs, add some finely ground dried sage.
1 or 2 cans or chopped oysters or pieces include the broth.
Add celery and onion with liquid.
Mix all together then add broth from the cooked turkey or broth from the giblets that are cooked separately, and canned chicken broth, plenty of salt and pepper.
Mixture should be pretty wet, but not dripping soupy. Amount of broth/liquid depending on whether you like drier or very moist dressing. It will dry as it cooks. Mix well, avoid mushing the bread pieces, TASTE to see if you need to add anything else.
Bake 350 for approx 30 - 45 min.
Seasoned bread, cornbread, and some plain (prepared like store brand packages or can make your own).