This week's theme is "The Sweetest Thing" -- all the dishes must be desserts. (Anthony's worst nightmare.) This week's dishes were judged blind by famed pastry chef Christina Tosi.

The first challenge will be judged blind by one of the most chefs of all time: Jacques Pepin. The theme of the challenge is Rich & Poor. The chefs must cook one rich dish -- something fancy made with decadent, expensive ingredients -- and one poor dish -- something made with more humble ingredients. But of course, they both need to be tasty. All four chefs put their dishes forward; whoever Chef Pepin picks as his worst will be eliminated on the spot.

For the final challenge, to be judged by the panel of mentors, the three remaining chefs have to cook three dishes: breakfast, lunch and dinner.