We just tried these cookies, both with and without chocolate chips. They are excellent!!
The only change to the recipe that we made was to use 1 cup Soft Winter Wheat (Pastry Flour), and 1 cup of the Rice Flour.
We have not tried to add the ice cream to create the ice cream sandwiches.... but that looks tasty too.
http://fatfreevegan.com/blog/2011/09/03/ice-cream-sandwiches/