Vegetable platters are plentiful at our holiday gatherings. This one is gently spiced with chaat masala, a salty and sour spice mix commonly used to season chaat (street food snacks) in and around South Asia. It’s worth seeking out, ordering online, or making yourself. Once you have it in hand, you’ll find you want to add it to popcorn, Chex Mix, potato chips, and other such snacks. In this recipe, it provides a zippy flavor boost for fresh winter vegetables. The chaat masala is both sprinkled on top of the vegetables to add more flavor as well as blended with yogurt to create a dip.