Fragrant Lemongrass Vegetable Soup

The lemongrass announces a Thai speciality. Used in soups, this fragrant and versatile herb adds great depth to what could be a rather commonplace vegetable soup.

I have omitted the fish sauce from the original Thai recipe and instead rely upon soy sauce, which I believe works better here and also makes the soup suitable for my vegetarian friends. This is a very sustaining soup.