From: "News Subsystem" <[email hidden]> Subject: Buttermilk - is there a way to produce it at home?
Buttermilk Substitute
If you can't find buttermilk for cooking, you can substitute plain yogurt, or sour milk(1 TBSP lemon juice or white vinegar to milk to equal 1 Cup. Let sit 5 min); or thinned sour cream. Any of these should work in a recipe calling for Buttermilk Mimi Pass