Chocolate-Mint Crackles

Melt chocolate in a heatproof bowl set over a pan of simmering water, stirring.

Whisk together flour, baking powder, and cocoa in a small bowl.

Whisk together granulated sugar, eggs, and melted butter in a medium bowl. Gradually whisk in melted chocolate and mint extract until smooth. Stir in flour mixture. Refrigerate until firm, at least 3 hours.

Preheat oven to 325 degrees. Roll tablespoons of dough into balls using your palms, then roll in confectioners' sugar to coat. Transfer to parchment-lined baking sheets, spacing each 1 inch apart. Bake until slightly firm in the center, about 15 minutes.

Let cool slightly on sheets set on wire racks. Transfer cookies to racks, and let cool completely.