Cyril Lignac and Mercotte welcome the four semi-finalists for a special gourmet illusions! The objective of the pastry chefs still in the running is to obtain two tops to validate their access to the grand final! • Classic test revisited: macaron illusion • Technical test: tabula scalata, optical illusion cake • Creative test with Julien Dugourd: incredible trompe-l'oeil cakes.