Just found it.
https://www.yahoo.com/makers/brownie...813490125.html
Somehow, though, I thought most people PREFER nuts in brownies, aside from
allergy considerations - or the expense of walnuts. (One can use cheap
sunflower seeds instead.)
One thing I've done (though not with a mix) is to take out a little of the
sugar and mix melted marshmallows in instead. (If you don't melt them first,
they'll rise to the top and likely burn.) It was popular.
Lenona.