Gromperenzopp

Ingredients

 * 4 or 5 leeks
 * 1 tablespoon butter
 * 4 or 5 pared potatoes
 * 3 cups boiling water
 * 2 teaspoons salt
 * 3 cups boiling milk
 * 2 egg yolks
 * 1/2 cup cream (or sour cream)
 * salt and pepper

Directions

 * 1) Remove green stalks and roots from 4 or 5 leeks.
 * 2) Wash well and cut into small pieces.
 * 3) There should be approximately 1˝ cups.
 * 4) Melt 1 tablespoon butter in a heavy soup pot.
 * 5) Add leeks and sauté slowly on a low heat until leeks are soft and transparent.
 * 6) Dice 4 or 5 pared potatoes (approx. 3˝ cups), add to leeks along with 3 cups boiling water and 2 teaspoons salt.
 * 7) Cook for 30 minutes.
 * 8) Strain mixture through sieve or food mill and return to the pot.
 * 9) Add 3 cups boiling milk, stir constantly and add 1 tablespoon butter.
 * 10) Then add 2 egg yolks blended with 1/2 cup cream slowly to hot soup (sour cream may be used).
 * 11) Add salt and pepper and finely chopped parsley if desired.