2 mandarins juiced
Peel the beetroots, the potatoes, the carrot and cut into chuncks.
Slice the leek.
Put the vegetables and the mandarin juice in a large saucepan, add 1 liter of water.
Cook for 30 minutes and blend.
Season as taste and serve.
Comment: Remember, this soup is quite thick and can be stored for five days in the fridge, remember just to add a little water before reheating.