Easy miso soup

Soup is my comfort food. Anytime I'm sick, sad, cold or hungover, I reach for a bowl of warm, brothy goodness. One of my favourites is miso soup, especially if I've got a craving for something salty. Since it usually only costs about a buck in Japanese restaurants, I figured it must be cheap and easy to make and decided to give it a try. I've been making it in big batches ever since. So cheap, so easy, so GOOD.