01 - Line a large baking tray or flat surface with parchment paper to prevent sticking during assembly.
02 - Process Oreos in a food processor until finely crushed. Transfer to a bowl and combine with 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 to a rectangle approximately 1/2 inch thick, ensuring even thickness throughout.
04 - In a chilled bowl, whip heavy cream with powdered sugar and vanilla extract until stiff peaks form. Gently fold in food coloring until the desired orange or purple shade is evenly distributed.
05 - Spread the colored whipped cream evenly over the Oreo base, leaving a 1-inch border along one long edge. Starting from the opposite long edge, use the parchment paper to carefully roll the mixture into a tight log. Seal with the seam side down.
06 - Refrigerate the roll for at least 1 hour until completely firm and set. This step is crucial for clean slicing.
07 - Drizzle with melted chocolate if desired, then generously apply Halloween sprinkles and candy eyes. Slice into 1-inch portions using a sharp knife. Serve cold.