" ... a manufacturing secret, held by Mr GENOT, owner of La Maison des Soeurs Macarons ... An emotional return to source: on a pilgrimage to Nancy, the nuns of Saint-Sacrement de Rouen wanted to follow in the footsteps of Sister Marguerite Gaillot and Sister Marie-Elisabeth Morlot, who created the famous sweetmeat. And kept the secret of an inimitable taste! "