I live in North Carolina. Initially I learned a tremendous amount from the NC Folk Life blog. The writer, David Cecelski, who taught me much no longer contributes to that site. He recently started a blog! His food writing is just part of it but well worth reading. If you click on “food” in the blogs menu there are links to many of his past articles on other sites.
This is a link for a recent series he wrote about the history of the spring herring catch:
Going a bit further afield for a look at the entire South I think the Southern Foodways Alliance does it best. There are articles focusing on traditions of the past. And there are articles focusing on what the newer immigrants to the region are bringing to the areas table.