01 -
Line a 33 cm x 46 cm baking sheet with parchment paper. Fill a large pot with 7.5 cm of water and bring to a simmer over medium heat. Reduce heat to low and place a heatproof bowl on top, avoiding steam contact with water. Add semisweet chocolate and stir occasionally until completely melted. Incorporate peppermint extract, then pour the mixture into the prepared baking sheet. Use an offset spatula to spread evenly. Refrigerate until firm, approximately 20 minutes.
02 -
Using the same simmering water setup, place a clean heatproof bowl on top. Add white chocolate and stir continuously until melted. Pour melted white chocolate over the set semisweet layer and immediately sprinkle crushed candy canes evenly on top. Refrigerate again until fully set, about 20 minutes.
03 -
Once fully set, break into pieces using your hands for a rustic appearance or a knife dipped in hot water for cleaner cuts. Store at room temperature for a few days, refrigerate for up to three weeks, or freeze for up to six months.