Manhattan clam chowder is the red, tomato-based soup found on diner menus all over the city. Mushrooms bring the perfect texture and flavor to this vegan version of the iconic New York City soup from NYC Vegan by Michael Suchman and Ethan Ciment. Manhattan Glam Chowder Serves 8 Ingredients 2 tablespoons extra-virgin olive oil 2 medium carrots,