Ingredients:

  Amount  Measure       Ingredient -- Preparation Method
--------  ------------  --------------------------------
   1      teaspoon      butter
   1 1/2  teaspoons     flour
     1/2  liter         vegetable/meat broth
     1/4  liter         milk
 100      grams         spinach -- finely chopped
   1                    egg yolk
 100      milliliters   cream
                        salt and pepper  to taste

Preparation:

Put butter and flour in saucepan. Heat, constantly stirring. Gradually add broth, stirringall the time. Add spinach and milk. Add salt and pepper to taste. Put egg yolk and cream in tureen. Whiskthoroughly and slowly add the soup (preferably with electric mixer). Serve hot, put in each portion a diagonally cut, hard-boiled egg.