1 T oil
1/2 c finely chopped onions
2 c chopped Leeks
1 sprig fresh or 1/4 tsp dried thyme
salt to taste
pepper to taste
1 1/2 qt chicken stock
2 c potatos, cut into 1/2 inch cubes
1 T fresh chives for garnish

Heat oil.  Add leeks, onions, and thyme.  Season.  cook 15 minutes.  Add stock, bring quickly to a boil.  Lower the temperature, and simmer until leeks are tender.  add potato and simmer until tender.  Puree.  adjust seasoning.  Garnish and serve.