01 - Line a large baking tray or flat surface with parchment paper to prevent sticking during assembly.
02 - Process Halloween Oreos in a food processor until finely crushed. Transfer to a bowl, then add powdered sugar, melted butter, and softened cream cheese. Mix thoroughly until a thick, sticky dough forms.
03 - Place the Oreo mixture between two sheets of parchment paper. Roll out to a rectangle approximately 1/2 inch thick, ensuring even thickness throughout.
04 - In a chilled bowl, beat heavy whipping cream with powdered sugar and vanilla extract using an electric mixer until stiff peaks form. Gently fold in food coloring until the mixture achieves a uniform orange or purple tint.
05 - Spread the colored whipped cream evenly over the rolled-out Oreo base, leaving a 1-inch border along one long edge. Use the parchment paper to carefully roll the mixture into a log, starting from the long edge without the border. Seal seam side down.
06 - Refrigerate the roll for at least 1 hour or until firm enough to hold its shape during slicing.
07 - Drizzle with melted chocolate, sprinkle with Halloween decorations, and add candy eyes as desired. Slice into 1-inch portions using a sharp knife. Serve cold.