Did you know that if you have a recipe that calls for buttermilk, that you can make a substitute?
Take one cup of milk and add 1 tablespoon of lemon juice or vinegar. They used to call it "sour milk" in the olden days. It works real good when you don't have any buttermilk on hand, but need it for a recipe.
Grandmother used to do this now and then when she made buttermilk biscuits.
Now you know!