I followed this recipe to the exact details. I used Nutella and Ritz crackers even though Ritz weren't suggested, it was only because they're a little harder to handle but I've never had a problem in the past. Anyway, everything seemed to be going very smooth until I took them out of the oven to microwave them for the last 15 seconds, after the microwave the cracker was smoking badly, and it was very burnt, I'll follow up and let you know how it went.