For the signature challenge in this, Chocolate Week, the competitors are each asked to make eighteen brownies. While Prue is primarily looking what she considers the classic characteristics of a gooey center and a slightly cracked top, Paul is just looking for a good brownie in considering it one of the most basic of baked goods, and if the competitors can't make a brownie, they may have no legitimate reason for being in the competition. In wanting to stand out from the crowd, the competitors may make the fatal flaw of over-complicating their bake. For the technical, the competitors again may fear Paul more so than usual in each being asked to make a bread, specifically a chocolate babka. And for the showstopper, they are each to make a layered white chocolate cake, which has its issues in white chocolate reacting differently than other chocolates especially to temperature and because of its high fat content, and that it is much sweeter than most other chocolates which means the competitors may want to infuse their cakes with other things specifically to temper that sweetness.
—Huggo