01 - Line a 9x13 inch baking sheet with parchment paper.
02 - Melt the chopped semi-sweet or dark chocolate in a heatproof bowl over barely simmering water or in short microwave bursts, stirring until smooth.
03 - Pour the melted dark chocolate onto the prepared baking sheet and spread evenly with a spatula to about 1/4 inch thickness. Chill in the refrigerator for 15 minutes until set.
04 - Using the same method, melt the white chocolate and allow it to cool slightly to prevent melting the dark chocolate layer.
05 - Remove the baking sheet from the refrigerator. Pour the melted white chocolate over the set dark chocolate layer and spread gently.
06 - Evenly sprinkle the crushed peppermint candies over the white chocolate layer, pressing them in lightly.
07 - Refrigerate for at least 30 minutes until fully set.
08 - Break or cut into approximately 20 pieces and serve or store in an airtight container.