Yasmin Khan unlocks the flavors and fragrances of modern Palestine, from the sun-kissed pomegranate stalls of Akka, on the coast of the Mediterranean Sea, through evergreen oases of date plantations in the Jordan Valley, to the fading fish markets of Gaza City. Palestinian food is winningly fresh and bright, centered around colorful mezze dishes that feature the region's bountiful eggplants, peppers, artichokes, and green beans; slow-cooked...