Tessa Kiros is not Portuguese. She is of Greek-Cypriot and Finnish parentage, so, you might ask, what would a London born, part Greek-Cypriot, part Finnish cookbook writer know of Portuguese food? Authenticity is not a word I am comfortable with. Perhaps being a mixed bag of ethnicities myself, I tend to refrain from hastily endorsing or decrying anything because of "authenticity" or a lack thereof, preferring to evaluate something based on its own merits, which fortunately, this book has ple...