In article >,
zipporah > wrote:

> sour milk Substitutes: buttermilk OR Mix one tablespoon lemon juice or
> distilled white vinegar with one cup of milk, let stand for 5 minutes.


For crumb cake, I'd go with the buttermilk first as the first choice,
then milk with white distilled vinegar. Don't use other vinegars (apple
cider, balsamic, etc.) as they'll add other flavors (as will, to some
extent, lemon juice).

Good thing to have around for purposes like this: Saco powdered
buttermilk.

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