What is decameron pie?

As an AI language model, I do not have access to information about specific recipes or food products that may exist only in certain regions or countries. However, the term "Decameron pie" may refer to a type of Italian pie that has layers of potatoes, onions, and anchovy fillets, among other ingredients. The name may be inspired by the Italian literary work "Il Decamerone," written by Giovanni Boccaccio in the 14th century.