01 - Line a baking sheet with parchment paper.
02 - Melt the chopped dark chocolate in a heatproof bowl over a saucepan of simmering water, stirring until smooth. Alternatively, melt in a microwave in 30-second intervals, stirring in between until fully melted.
03 - Remove the melted chocolate from heat and stir in the peppermint extract until evenly combined.
04 - Pour the melted chocolate onto the prepared baking sheet and spread it evenly to about 1/4 inch thickness.
05 - Sprinkle the crushed peppermint candies evenly over the chocolate layer.
06 - Gently press the peppermint pieces into the chocolate surface using a spatula to ensure they adhere.
07 - Allow the chocolate bark to cool at room temperature for 30 minutes, then transfer to the refrigerator for 20 to 30 minutes until completely set.
08 - Once solidified, break the bark into pieces and store in an airtight container.