01 - Line a baking sheet with parchment paper or a silicone mat.
02 - Place small clusters of 6 to 8 pretzel sticks spaced apart on the prepared baking sheet.
03 - Melt the semi-sweet chocolate chips in a microwave-safe bowl at 30-second intervals, stirring between each until smooth.
04 - Using a spoon, generously drizzle or coat each pretzel cluster with melted semi-sweet chocolate to ensure the sticks adhere together.
05 - Melt white chocolate chips separately using the same microwave method until smooth.
06 - Drizzle melted white chocolate over the chocolate-coated pretzel stacks for decoration.
07 - Immediately sprinkle with mini chocolate candies or chopped toasted nuts if desired.
08 - Allow the stacks to set at room temperature until firm, or refrigerate for 15 minutes for faster setting.
09 - Carefully lift the set stacks off the baking sheet and serve.