01 - Line a large baking tray or flat surface with parchment paper to prevent sticking during rolling.
02 - Finely crush Oreos in a food processor. Transfer to a bowl and mix with powdered sugar, melted butter, and softened cream cheese until a thick, sticky dough forms.
03 - Place Oreo mixture between two sheets of parchment paper. Roll out to a rectangle approximately 1/2 inch thick.
04 - In a chilled bowl, beat heavy cream with powdered sugar and vanilla until stiff peaks form. Gently fold in food coloring until evenly tinted.
05 - Spread colored whipped cream evenly over rolled-out Oreo base, leaving a 1-inch border on one long side.
06 - Using parchment paper for assistance, carefully roll the mixture into a log starting from the long edge without the border. Place seam side down.
07 - Refrigerate for at least 1 hour or until firm enough to slice cleanly.
08 - Drizzle with melted chocolate, sprinkle with Halloween decorations, and add candy eyes if desired. Slice into 1-inch portions with a sharp knife. Serve cold.