Kulajda is a

Czech cuisine Czech cuisine has both influenced and been influenced by the cuisines of surrounding countries and nations. Many of the cakes and pastries that are popular in Central Europe originated within the Czech lands. Contemporary Czech cuisine is ...

soup. One version is made with

sour cream Sour cream (sometimes known as soured cream in British English) is a dairy product obtained by fermenting regular cream with certain kinds of lactic acid bacteria. The bacterial culture, which is introduced either deliberately or naturall ...

potato The potato () is a starchy tuberous vegetable native to the Americas that is consumed as a staple food in many parts of the world. Potatoes are underground stem tubers of the plant ''Solanum tuberosum'', a perennial in the nightshade famil ...

es,

dill Dill (''Anethum graveolens'') is an annual herb in the celery family Apiaceae. It is native to North Africa, Iran, and the Arabian Peninsula; it is grown widely in Eurasia, where its leaves and seeds are used as a herb or spice for flavouring ...

and

quail Quail is a collective name for several genera of mid-sized birds generally placed in the order Galliformes. The collective noun for a group of quail is a flock, covey, or bevy. Old World quail are placed in the family Phasianidae, and New ...

egg.

Mushroom A mushroom or toadstool is the fleshy, spore-bearing Sporocarp (fungi), fruiting body of a fungus, typically produced above ground on soil or another food source. ''Toadstool'' generally refers to a poisonous mushroom. The standard for the n ...

s are also an important ingredient of the soup. In some regions another sour mushroom based Czech soup ''

kyselo Sour cereal soup is a Slavic traditional soup made with various types of cereals such as rye, wheat and oats, which are fermented to create a sourdough-like soup base and stirred into a pot of stock which may or may not contain meat such as boile ...

'' is mistaken named as ''kulajda''. The difference is that ''kyselo'' uses

sourdough Sourdough is a type of bread that uses the fermentation by naturally occurring yeast and lactobacillus bacteria to raise the dough. In addition to leavening the bread, the fermentation process produces lactic acid, which gives the bread its dis ...

and (most of the time) neither sour cream nor milk.

References

Czech cuisine Soups {{soup-stub