Very interesting concept. I was happy with the results and the only thing I did different was use chocolate ice cream topping instead of caramel. One thing worth noting: Ice cream sandwiches vary greatly in size depending on the manufacturer. Get the biggest by weight for the best results.
This was simple and delicious! My three year said, "Mmmmmmm! This is Goooood!" And I thought so too. :-) Only thing I did a little different was that I didn't add the whole 14 ounces of condensed milk. I used a little more than half, and it was rich enough. Awesome summer recipe!