A treat my daughter made for the all-day Harry Potter movie marathon currently going on at my house. Fever fudge is a type of sweet made by Fred and George Weasley and is designed to make the one who eats it get a high fever within seconds of eating it. The bottom layer of the fudge is made with white chocolate mixed with cinnamon and cayenne pepper. The top layer is made with white chocolate as well, but flavored with mint extract. So the bottom is hot and the top is cool.