Peppermint Flake

Filling

To Make the Filling

1. Mix the confectioners’ sugar, chocolate liquor, and cocoa butter in a 5-qt planetary mixer. The dough should be stiff; if necessary, adjust the consistency with additional confectioners’ sugar or cocoa butter.
2. Form the filling into a 20-cm/8-in square on parchment paper. Keep it warm in a 93°C/200°F oven.