-L. wrote:

> > My mom left hers for a couple of days and they were still great.
>
> That's what I recalled but I wasn't sure it it was soda or powder that
> lasted. Thanks!
> -L.

I'd worry more about the raw eggs in the mix. Once cracked and mixed
into something, they seem to go bad before anything else. Still, a day
or two shouldn't hurt.

(When I make cookies, it isn't the mixing that takes time, it's the
baking.)

N.