01 - Line a large baking tray or flat surface with parchment paper to prevent sticking during assembly.
02 - Finely crush the Oreos in a food processor. Transfer to a bowl and add powdered sugar, melted butter, and softened cream cheese. Mix until a thick, sticky dough forms.
03 - Place the Oreo mixture between two sheets of parchment paper. Roll out to a rectangle about 1/2 inch thick for even layering.
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 the colored whipped cream evenly over the rolled-out Oreo base, leaving a 1-inch border on the long side for proper sealing.
06 - Using the parchment to guide, carefully roll the mixture into a log starting from the long edge without the border. Seal seam side down.
07 - Refrigerate for at least 1 hour until firm enough to hold its shape during slicing.
08 - Drizzle with melted chocolate, sprinkle with Halloween decorations, and add candy eyes if desired before serving.
09 - Cut into 1-inch slices with a sharp knife. Serve cold for best texture and flavor.