On 2014-08-08 12:53 PM, John Gordon wrote:
> In > jmcquown > writes:
>
>> You can make faux buttermilk by souring regular whole milk by adding
>> some white vinegar. I'd have gone with that option.
>
> Could using regular milk instead of buttermilk have caused the bitter
> taste? The recipe does call for buttermilk (or yogurt), but I'm 99.9%
> sure I've made it substituting plain milk for buttermilk and it was fine.

You typically use baking powder when making cookies and other things
that need leavening. If using fruit or buttermilk, which is somewhat
acidic, you use some baking soda as well.