Jane Kramer started cooking when she started writing. Her first dish, a tinned-tuna curry, was assembled on a tiny stove in her graduate student apartment while she pondered her first writing assignment. From there, whether her travels took her to a tent settlement in the Sahara for an afternoon interview with an old Berber woman toiling over goat stew, or to the great London restaurateur and author Yotam Ottolenghi's Notting Hill apartment, where...