Mostaccioli
mostacciolo, mustaccioli
Mustacciuoli, also known as mustaccioli or mostaccioli, is a pastry originating in the Naples region of Italy, usually served at Christmas time. Mustaccioli takes the form of a parallelogram, and consist of a soft, spiced, cake-like interior, covered in chocolate. In recent years, there are many variations of mostaccioli sold in Naples, where the chocolate glaze may be replaced by a white chocolate frosting or icing sugar and candied fruit. Mustaccioli are often sold alongside other Neapolitan sweets including roccocò, raffiuoli, susamielli, and struffoli at Christmas time.
Source: Wikipedia
Recipes

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