40min · 24 servings INGREDIENTS ¼ cup (60 grams) unsalted butter, softened ⅓ cup (80 ml) light corn syrup 1 and ½ teaspoons peppermint extract 3 and ½ cups (420 grams) powdered sugar plus extra for sprinkling on work surface 12 ounces (340 grams) semi-sweet chocolate roughly chopped