If you can't use the whole carton of buttermilk, there's no need to waste it. Buttermilk is a tangy cooking and baking staple that gives your pancakes, biscuits, dressings, and other goodies a ...

But most recipes that call for buttermilk only require up to a cup, leaving you with almost a full carton you may not have any immediate plans for. The question at that point is how long will the ...