Serbian-style potato čorba with vegetables and a light paprika roux
Krompir čorba is practical home cooking rather than a fixed ceremonial formula. The Serbian versions most useful as a baseline combine potato with everyday vegetables and enough thickening to distinguish the bowl from a clear soup. The soup uses onion, carrot, sweet pepper and tomato, then finishes with a small paprika-flour roux. There is no meat, cream or egg, so the flavour remains centred on vegetables and sweet paprika.
Potato size determines the final body. Cubes close to two centimetres soften in roughly the same window as the diced carrot while still remaining visible in the finished bowl. If half the potatoes dissolve, the soup becomes starchy before the roux is added; if they are too large, the vegetables around them overcook first. The base is sautéed briefly to remove the raw onion edge and concentrate the tomato before the measured water goes in.
The roux is intentionally light. Flour cooks in a small second measure of oil only until the raw aroma disappears. Sweet paprika follows after the heat is lowered, because paprika scorches quickly and turns bitter. Diluting the roux with a ladle of hot soup before it returns to the pot prevents dense lumps. Five minutes of final simmering is enough to hydrate the flour and give the broth a thin coating consistency.
The soup is ready when a potato cube breaks under gentle spoon pressure but does not vanish into the liquid, and when the broth lightly coats the spoon without becoming pasty. Fresh parsley goes in at the end so it keeps a clean herbal note. As with any cooked soup, leftovers need a cooling plan: shallow containers, refrigeration within two hours at 4 °C or below, and reheating to 73.9 °C throughout.