I have found a chocolate sandwich cookie (similar to oreos) that is both
dairy-free on the ingredient list AND certified kosher parve.  They are
called Bloom-eos, made by Bloom's Kosher Products.  I found them in
Baltimore in a kosher grocery store.  No web site or phone # on the
package, but "manufactured for and distributed by Bloom Pkg. Corp.,
Brooklyn NY 11232.