On Sun, 05 Oct 2003 12:42:04 GMT, Frogleg
> wrote:

> >Helen C. wrote:
>
> >> I noticed that some use egg or egg whites. I'm curious as to why. Also
> >> some recipes used sour cream, milk, cream, or yogurt. Most used
> >> cheddar cheese.
>
> Eggs or egg whites would produce a little oomph and puff to the final
> product.

They also poof up with no egg.