Put the chicken parts in the pot in cold water (almost full pot) to boil over high heat.
After 15-20 minutes, skim off the scum.
Add the whole onions, well washed, unpeeled.
Low heat, cover with a lid and boil for an hour.
After this hour add the vegetables, whole, peeled and washed.
Boil for 20 minutes.
Strain the soup, set aside the vegetables and meat to cool off. Throw away the onions.
Pick the meat from the bones, dice the vegeatblesand put them back in the soup. Add the mashed garlic now.
In a large bowl, mix the sour cream with egg yolksand 1 tablespoon of salt.Add gradually a bit of soup, while mixing,until the mixture becomes hot, to avoid breaking the emulsion.
Put it in the soup while mixing.
Add 5-6 tablespoons of vinegar, tarragon, pepper and salt if needed.
Turn of the heat. Your sour soup is ready.
Keyword romanian recipe, romanian soup, soup, sour soup