My wife and I are on a vacation tour as I write this.  We arranged for a private drive around the town we were visiting to see some sites that were not part of the official tour.    Our driver, Manuel, was showing us those sites, but also taking time to explain to us foods of the area.  One was Nata, a traditional Portuguese custard yart with a flaky, buttery crust and creamy egg-based filing. Manuel pointed out the most popular bakery that made that pastry, as well as other