After an overindulging weekend I wanted something very light for today's lunch. As I anyway bought too many bunches of radish on the market, I wanted to make something that needs a lot of them. I have had the idea of radish soup already for a while on my mind, but I always postponed it. I definitely wanted to cook the radish, but it was important to keep its colour, therefore I prepared a stock using potatoes and then I used that to cook the radish for a few minutes. During the morning walk…