Chilled Watercress And Pear Soup

recipe-01 1 onion, chopped
25g butter
250g potatoes, diced
600ml chicken stock
2 bags or bunches of watercress
4 pears peeled and diced
50ml cream
a little milk

In a large pan, sweat the onion in the butter until soft but not brown. Add the potatoes and stock, approx 15-20 minutes. Add watercress and diced pear for the last five minutes of cooking time. Liquidise, add cream and a little milk if the soup seems to thick. Season, cool and cover, then chill in the refrigerator for at least 8 hours. Check seasoning before serving.