Gâteau Saint-Honoré

This cake is far more attractive than it is practical. It is named for Saint Honorius, the Bishop of Amiens in the sixth century and the French patron saint of pastry cooks. You will also find a street in Paris that bears his name; it is the Rue du Faubourg Saint-Honoré. Unfortunately, this absolutely delicious and unusual-looking cake must be served the same day it is finished. If not, two of its components—puff pastry and pâte à choux—become soggy and less appetizing. The cake can, howeve