Definition
Carignano Zest are candied citrus fruit peels whose ingredients are only peels and sugar.
The traditional recipe is described by Mario Marsero, a confectioner of the 18th century, in the book Dolci delizie subalpine. Piccola storia dell'arte dolciaria a Torino e in Piemonte, published by Lindau, Turin.
Bibliography if you want to know more: Castagno Paolo, "La dolce tavola di Carignano: gli zest e il cariton - tutela e riscoperta di due dolci tipici locali", Carignano, 2008 (for copies, write an e-mail to paolocastagno@tele2.it)