• 1 chopped onion
  • 3 medium leeks
  • 4 potatoes
  • butter
  • crème fraiche
  • chervil
  • water or chicken stck or vegetable stock


  • Begin by melting about 25g of the butter in a pan and soften the chopped onion in it; At the same time, heat the stock or water.
  • Leave the onion for about 10 minutes and then when golden, add the leeks which have been trimmed, washed and chopped.
  • Leave these to soften for around another five minutes then add all the potatoes which too, have been choppped.
  • When this is done add enough of the liquid, water or stock to cover all these vegetables and season with a little salt.
  • Bring to the boil and then leave to simmer for around 20 minutes or until the potatoes are cooked.
  • Now blend the soup in a food processor or other blending implement.
  • To Serve
  • You could serve this with a little crème fraiche garnished with chervil or just simply by itself. A pinch of nutmeg will also enhance this classic soup.