Being registered in the National Intangible Cultural Heritage list, sour soup has been cooked in different parts of Zanjan in the past till now. It has been a custom to cook and serve this soup when relatives, acquaintances, and friends gather together.
This soup is cooked during the Safar (in the Islamic calendar) as a votive. The ingredients in this delicious food include minced meat, vegetable stew (leek-parsley-coriander-beet leaf-dill), chickpeas, beans, lentils, onions, noodles, dried apricots and plums, carrots, potatoes, dried cherries, nuts (hazelnuts, pistachios, Walnuts, dried mint, oil (preferably animal oil), salt, pepper and turmeric, vinegar, tomato paste, and garlic.
Due to the volume and type of the ingredients used, sour soup is regarded as a complete food which contains a good source of vitamins and nutrients.
This soup has many fans on the cold days of the year. If you want to try this delicious dish, visit Zanjan and put the National Iranian Ash Festival on your travel plans list.