I made this twice and the second was better. The first time, I put the Oreos in a ziploc and crushed them as much as I could. But 24 only covered half the pan, so I used 48. The crust was too thick in proportion to the cheesecake. The second time, I buzzed them in the blender. For variety in texture, I did 8 cookies really fine (powder), 8 as small chunks (pea size), and 8 in between. Using the bottom of a cup as suggested, it *just* covered the bottom of the pan. I'd recommend 28 doing it this way. Also, the first time I didn't let my cream cheese sit out for very long, so it didn't mix well and I ended up with specs of white in the chocolate cheesecake. The second time I made sure to let the cream cheese get really soft, and it was easier to mix and the cheesecake turned out much smoother. I offered sliced strawberries and whipped cream as optional toppings. It was fantastic and super popular at the birthday party I went to! It disappeared before the birthday cake did. Sometimes I th