Here's How To Fix Horribly Soggy Thanksgiving Stuffing - Tasting Table
Briefly

Most of the time, your ratio is off. If you're adding too much liquid to your bread crumbs, you can try drying it out in a low temperature oven for minor errors. If your stuffing is very wet, add more bread crumbs, and you will have to adjust the seasoning too.
The ratio should entail a larger proportion of bread. We recommend a two-to-one ratio of bread to all other ingredients to ensure the perfect texture for your stuffing.
To dry out fresh bread, you can put slices or cubes of bread into a low-heat oven prior to mixing it into the stuffing, ensuring optimal texture.
Adding more bread crumbs to soak up a soupy stuffing will also reinvigorate its texture with much needed chew along with the crispy toasted bits on top.
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