Vietnamese sour soup encompasses various fish-based Vietnamese soups which are characterised by their combination of sweet, spicy, and sour tastes. The soups are usually made using a tamarind-based broth and typically include chunks of pineapple, tomatoes, okra, bean sprouts, or other vegetables, the website wrote. Most varieties are prepared using catfish, although some versions also include carp, snakehead fish, eels, or salmon. These soups are usually topped with cilantro before then being served with rice on the side, according to details given by food website TasteAtlas. Other local dishes to make the list include sweet and sour tamarind soup, ranking 19th globally; and river fish and river hemp flower hot pot, which came in at 53rd. Both delicacies are from the Mekong Delta region./.