Sour Soup with Lettuce

Description
In Romanian: Ciorba de salata

Ingredients

 * 2 quarts / 2 l water
 * 2 Boston lettuces with firm cores
 * 1 carrot
 * 1 parsley root
 * 1 big onion
 * 1 garlic clove (optional)
 * 1 tablespoon flour
 * 2 yolks
 * 2 tablespoons sour cream
 * 2-3 tablespoons vinegar
 * chopped parsley
 * salt

Omelette

 * 5 oz / 150 g smoked bacon
 * 4 eggs
 * 2 tablespoons milk
 * salt

Directions

 * 1) Finely chop the carrot, parsley root, onion and garlic and set to boil in water for ½ hour.
 * 2) Strain, removing the vegetables.
 * 3) In the meantime, beat the yolks with the flour, sour cream, salt and vinegar, then add the strained liquid a little at a time, stirring continuously until it is all added.
 * 4) Set to boil and add the lettuce, cut into pieces.
 * 5) Let come to just one boil.
 * 6) For the omelette, cut the bacon into pieces, fry and then add to the eggs beaten with milk and some salt.
 * 7) Cut this omelette into thin strips, place into the serving bowl and pour the hot soup over it.
 * 8) Add chopped parsley.