Chicken Stew with Tomatoes, Oranges, and Olives

You know how good a soft cashmere scarf feels around your neck on a blustery day? Think of this dish as a cashmere scarf for your taste buds. The leek really adds a subtle flavor as only a leek will, so try to use it if you can. If finding a leek is too much trouble, go ahead and use a small onion, thinly sliced. Carrot and celery round out the veggies in the stew, with orange juice and diced tomatoes tarting up the whole thing. The olives add a briny touch and the orange zest gives this ch