Mattei Biscotti with PistachiosDelicious new Pistachio Biscotti in blue bags with green to emphasize pistachios. First, Biscottificio Antonio Mattei broke new ground with Cantuccini with Dark Chocolate, a departure from their traditional recipe. Now, they introduce another new iteration of their famous biscotti: Biscotti con Pistacchi e Mandorle. Every aromatic bite is firm and crunchy and rich with pieces of pistachio and almond, and will have you going back for piece after piece.