The buttermilk pie I'm looking at in
Fannie Farmer Baking Book has more buttermilk than any of the other pies (1 cup). There are two chess pies in that book, both with corn meal but one with and one without buttermilk. I think a vinegar pie just has vinegar instead of lemon juice. I make a lemon chess pie that has a 1/2 cup buttermilk, 4 eggs, 1T flour and 1T cornmeal. Not sure I can give the whole recipe since this is one that I have not tampered with, but it's in
The South The Beautiful cookbook.
I feel like you need cornmeal to get that slightly cheese-like texture down in chess pie, but I certainly would not spend time arguing about this if there was a pie in front of me.
The Fannie Farmer book has tons of pie recipes and Marion Cunningham said she tried to include old, disappearing pies. I have lots of fun looking over all her different pies during the holidays but haven't tried most of them.
"things like being careful with your coriander/ that's what makes the gravy grander" - Sondheim