A crème chiboust is nothing more than a just prepared (and still hot) pastry cream lightened with a (still warm) Italian style meringue. Using an Italian meringue over a regular cold made meringue is the common method since it provides better stability of the cream.

The result is very light and can be used to fill and decorate cakes, but also baked tarts.

Crème chiboust can be flavoured with vanilla, orange zest, or liqueurs.

It was supposedly created and developed in 1847 by the pastry chef M. Chiboust of the pastry shop that was located on the Paris street Rue Saint-Honoré.

More Info: chefeddy.com