We use either Smart Balance Light 
(http://www.smartbalance.com/lactose_concerns.html) or Fleischmann's 
unsalted (http://www.fleischmanns.com/products/light.jsp), being 
careful to choose only the varieties that are labeled "pareve."

If you hunt around, you'll find non-milk-chocolate chocolate chips. 
They, too, should be labeled "pareve," for additional confidence that 
they are dairy-free.

There are some caveats here, but for the most part things labeled 
pareve are have no dairy ingredients and are prepared on equipment 
that either hasn't been used for dairy foods, or has been purged of 
the dairy, following the religious rules of Kashrut (.ie., they're 
kosher, milk-free, and meat-free).

For a good treat, see the following, which I posted a long time ago 
on the list:

http://listserv.icors.org/SCRIPTS/WA-ICORS.EXE?A2=ind0003&L=no-milk&T=0&P=4469

Mark

At 12:13 PM 1/29/2007, Colleen Barrett wrote:
>I have a question for you- what type of butter or margarine 
>substitute do you give your daugher, if
>any?
>
>Also, I ordered a book on dairy free desserts, but many of them called for
>chocolate chips (which obviously contain milk), so what are people using as
>a "chocolate substitute?"  I want my daughter to have a "treat" for specail
>occassions at school like the other kids get!
>Colleen