01 - Line a large baking tray or flat surface with parchment paper to create a clean workspace for rolling the dessert.
02 - Finely crush the Oreos in a food processor until they reach a fine crumb consistency. Transfer to a bowl and 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 form 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 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. Starting from the opposite long edge, use the parchment paper to carefully roll the mixture into a tight log shape.
06 - Place the rolled dessert seam-side down and refrigerate for at least 1 hour, or until firm enough to hold its shape when sliced.
07 - Drizzle with melted chocolate, sprinkle with Halloween decorations, and add candy eyes as desired. Slice into 1-inch portions using a sharp knife and serve cold.