Rūgštynių sriuba
Also: Sorrel soup, Lithuanian sorrel soup
A tart Lithuanian spring soup of sorrel leaves simmered with potato, finished with hard-boiled egg and a swirl of sour cream.
Identity criteria
- 1Built on sorrel (rūgštynė) leaves, which give the defining sharp-sour tang
- 2A spring/early-summer soup tied to the first sorrel harvest
- 3Potato gives body to the otherwise light broth
- 4Finished with chopped hard-boiled egg
- 5Served with a swirl of sour cream to soften the acidity
Components
Sorrel leavesessentialThe defining sour green
PotatoessentialProvides body
Hard-boiled eggessentialClassic garnish stirred in
Onionoptional
Sour creamessentialSwirled in to balance the tartness
Water or light stockessential
Technique
- Brief simmering of sorrel
- Sorrel collapses and loses its bright colour fast, so it is added near the end to keep its sour punch
Form & serving
- Served
- In a bowl with egg and a swirl of sour cream
- Temperature
- hot (sometimes served cool in summer)
- Portion
- individual bowl
- Pairs with
- Rye bread · Boiled potatoes · Sour cream
Character
Flavour
Texture
Light brothy soup with soft potato and wilted greens
Eaten
A spring first-course soup in Lithuania, eaten when fresh sorrel appears, with rye bread and sour cream.
When
spring · early summer
Variations & related
Regional variations
- Lithuanian rūgštynių sriuba · Lithuania
Sorrel, potato, egg and sour cream
- Latvian / Polish sorrel soup (zupa szczawiowa) · Latvia / Poland
Closely related sorrel soups, sometimes meat-based
Related dishes
- sibling Zupa szczawiowa
The Polish sorrel soup counterpart
- sibling Šaltibarščiai
Another tart Lithuanian seasonal soup
Substitutions
Sour cream → Cream or yogurtadmissible
Other dairy can soften the acidity, though sour cream is traditional
Sorrel → Spinachinadmissible
Spinach lacks the sourness that defines the soup — without sorrel's tang it is simply a green soup, not rūgštynių sriuba
Common mistakes
- Overcooking the sorrel, dulling both its colour and its sour punch
- Substituting non-sour greens and losing the defining tartness
- Omitting the sour cream and egg garnish that balance and complete it
Provenance
A shared Baltic-Polish spring sorrel soup, a seasonal staple in Lithuania and neighbouring countries.
Shared by: Lithuania, Latvia, Poland
References
- 1.Lithuanian culinary tradition
Confidence: high