Fennel and apple pair terrifically in this simple and elegant salad, wonderful for cleansing the palate after a hearty winter stew. Fennel is a winter vegetable that brings a celery like crunch and cucumbery sweetness to this easy winter salad. We like to pair fennel and apple with a tart and salty citrus vinaigrette, and couldn't resist the bright orange color and flavor of this tangerine vinaigrette.