Yesterday at work we had our first bimonthly celebration for the birthdays in my department.  I was asked to make a cake that would serve about 50 people.  The floor really loves my Oreo cupcakes so the Social Committee requested an Oreo cake.      This is a 2 layer 10" cake.  The cake itself is cookies and cream iced with vanilla buttercream.  I scored the top into 1" by 2" pieces.  You can barely see it in the picture though.  To each rectangle I added a mini Oreo cookie then dusted with cookie crumbs.  Scoring the cake made it really easy to cut and to ensure it served 50 people.