Few spices feel as familiar as ground cinnamon: We swirl it into oatmeal; sprinkle it on top of lattes; bake it into pies, cakes, and cookies; and even add it to savory dishes. But when it comes to shopping for cinnamon, the choices sound exotic. Instead of picking up simple “ground cinnamon,” you can choose from among bottles specifying “Vietnamese” or even “Saigon” on the label. S... read more