For a fast cornbread to go with homemade soup, when my husband was alive, I used Jiffy boxed along with creamed corn in it because he loved “Creamy Cornbread”.
Using a boxed mix always seemed weird to me - remember mother used “handful of this” and “pinch of that”, plus it doesn't take too long to make cornbread from scratch but I kept a few boxes of mix on hand for fast cornbread since he liked that mix with creamed corn.
/johnny