Place the chocolate in a small bowl over a saucepan of barely simmering water. Stir occasionally until the chocolate is melted and smooth, about 4 minutes.
Combine the noodles, almonds, mango, cayenne pepper if using and melted chocolate in a large bowl. Stir until all the ingredients are coated with chocolate. Scoop the mixture onto the prepared baking sheet using a 1/4-cup ice cream scoop and allow the cookies to harden at room temperature, about 2 hours. Store the cookies in an airtight container at room temperature.
Cook's Note: Use scissors to cut the dried mango into pieces.