I, like many of you I'm sure, found out that the famous chocolate wafer cookies that are used in this recipe have been discontinued. I'm so bummed of course, but have some ideas for substitutes! My first choice would be Tate's chocolate chip cookies. They're a similar shape, size and crispiness. You could also try to use Oreo Thins, or I've heard of another brand called Dewey's that has a product called Brownie Crisp Cookies that I bet would work great too! Hope that helps! Let me know in the comments if you try any of these substitutes and what were your favorites!