This was soooo scrumptious! I got lots of compliments when I took it to book club last night! I used ALL the chocolate, but added about 4 Oreos to the crust, because my crust didn't quite cover my pan (which is 9 3/4 inches in diameter, not 9). It looks so fancy! I'm not sure about the prep time being 10 minutes, though. I have a Pampered Chef food chopper, and the baking chocolate was still quite a bear to chop. If I were to do it again, I might buy chocolate chunks in the bags. The prep took me around 30 mins, then you bake it around an hour, and then you have to let it cool, then you do the topping, which is around 15 more minutes.