(Many) years ago when I spent some time down south I learned to make biscuits with self rising flour, mayo and milk. Roughtly, it was about 2 cups SR flour 2 + heaping serving spoons mayo and about a half cup of milk. Roll em and cut with a glass and bake high, about 4-425 on greased cookie sheet. I think we used buttermilk sometimes too. I will have to try this again now to see if I remembered it right.
Lnda