The calisson d'Aix is a small sweet shaped like a navette, an elongated diamond with rounded ends. The paste is made from finely ground almonds mixed with candied melon and orange peel, sometimes scented with orange blossom. It is spread over a thin wafer sheet and covered with a white layer of royal icing made of egg white and sugar.
The origin of the sweet is unknown. A 12th-century Latin text already mentions a calisone, an almond-and-flour cake similar to marzipan. Aix tradition links the calisson to King René, count of Provence in the 15th century: the legend says that at his marriage to Jeanne de Laval in 1454 the bride tasted the sweet and smiled, and that the name came from a Provençal phrase uttered on that occasion. It is a legend.
The calisson is part of the thirteen sweets served at the end of the Christmas supper in Provence, alongside dried fruits, pompe à l'huile and others. The city of Aix regards it as part of its living heritage.
Aix producers formed an association to defend the name calisson d'Aix and applied for a protected geographical indication; the application went through several stages over the years.