01 - Line a baking sheet with parchment paper to prevent sticking and ensure easy removal.
02 - Place semisweet chocolate chips in a microwave-safe bowl. Microwave in 30-second intervals, stirring thoroughly after each interval, until completely smooth and fully melted.
03 - Pour the melted semisweet chocolate onto the prepared baking sheet. Use an offset spatula to spread evenly into a rectangular layer approximately 1/4 inch thick.
04 - In separate microwave-safe bowls, melt white chocolate chips and colorful candy melts. Microwave each in 20-second intervals, stirring between intervals, until smooth and pourable.
05 - Drop spoonfuls of melted white chocolate and colored candy melts randomly over the dark chocolate base. Drag a toothpick or skewer through the chocolates in a swirling motion to create a marbled pattern.
06 - While the chocolate remains warm and tacky, immediately sprinkle mini candy-coated chocolates, candy eyes, and Halloween sprinkles evenly across the surface.
07 - Allow the bark to cool completely at room temperature until firm, approximately 30 minutes. For faster setting, refrigerate for 10-15 minutes.
08 - Once fully set and firm, break the bark into irregular, rustic-sized pieces by hand. Arrange on a serving platter or store in an airtight container.