A speciality of Siena dating back centuries, copate (or copett) are two thin wafers filled with walnuts, aniseed and honey. They also make them in Lombardy, where they're called coppatta, coppatte, cuppata or cuppatte and often add fennel seeds to the filling.
In Piedmont they make the similar coppette di Sant'Antonio (or copeta or cöpeta) filled with sugar, chopped hazelnuts and honey.
In Liguria, similar cubaite or cubàite filled with almonds, orange peel and honey, and sometimes walnuts or hazelnuts are especially popular in Ventimiglia, Apricale and other villages on the western Riviera.
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