FYI: Watercress is one of only three indigenous vegetables we have in Britain (the other two are samphire and kale). It's strange how none of them are regularly eaten.
Freezing your watercress soup results in something that resembles pond water - beware!
Start off by dicing a pound of potatoes and slicing an onion. Soften these in a covered saucepan in a little water until soft – keep an eye on it, as you will have to top it up a couple of times. Measure out 2 ½ pints of chicken stock before attempting to blend the potatoes as you may need to some of it to add. Add the liquidised potatoes along with the rest of the stock to the pan and reheat without boiling. Chop 2 small bunches of watercress and stew them in butter for around minutes and add them to the soup. Season with salt, pepper and nutmeg and add two tablespoons of cream to enrich it.
#69 Watercress Soup: 5/10. OK, but I prefer watercress as a salad leaf I think. It has a nice texture to it and the pepperiness does come through, though is hampered by the fact it is cooked.