Temperature: Cold
Where: Cocina criolla / cevichería
Price range: S/15–35
What causa limeña is
Causa is a cold layered dish built from mashed yellow potato seasoned heavily with lime juice and ají amarillo, sandwiching a filling — usually chicken salad, tuna, shrimp, or avocado-and-crab — and topped with a slice of egg and a black olive.
It looks like a small terrine: bright yellow potato above and below, cool filling in the middle. It eats cold. The potato is dense and tangy from the lime, the filling brings creaminess, and the ají gives a low background warmth.
Why it's special
Two reasons. First, it's the rare Peruvian dish that's served cold — perfect for Lima's grey, humid afternoons when nothing hot sounds appealing. Second, it's built around the papa amarilla (yellow potato), one of dozens of native Peruvian potato varieties — and you'll taste the difference immediately if you've only ever had supermarket potatoes.
The classic versions
The filling is what defines each version:
- Causa de pollo — shredded chicken with mayo, lime, and a touch of mustard. The most common version.
- Causa de atún — canned tuna with mayo. Cheap, satisfying, found everywhere.
- Causa de camarones / langostinos — shrimp or prawn salad. Pricier.
- Causa de cangrejo — crab. Often the most expensive option on the menu.
- Causa rellena con palta — extra avocado layer. Common.
Most restaurants serve causa as a starter (entrada). At lunch you'll see it as one of the entrada options on the menú del día.
How to order it
Say "causa de" plus the filling: "causa de pollo, por favor". If you want it as a main rather than a starter, ask for it as "plato fuerte" — most places will serve a larger portion.
What it should cost
| Where | Plato (S/) |
|---|---|
| Menú del día (entrada) | included (S/15–22 total) |
| Standard restaurant (starter) | 18–28 |
| Upscale / cevichería (with seafood) | 35–60 |
How to eat it
Causa is built in layers, but on the plate you should mix them. Cut a vertical slice with your fork so each bite has potato top, filling, and potato bottom. Add a touch of the ají amarillo cream that comes on the side — almost every restaurant plates it with one.
Drink it with chicha morada or sparkling water. Beer is fine but the dish is delicate enough that a non-alcoholic drink lets the flavors come through.
Origins
Causa is a deeply Peruvian dish in the literal sense — Peru is the genetic origin of the potato, with over 4,000 native varieties, and causa exists because of that. The base (boiled yellow potato + lime + ají amarillo + oil, smashed cold) is pre-Columbian in spirit, though the layered modern form took shape in 19th-century Lima. The name's origin is debated — popular legend ties it to the War of the Pacific (1879–1884), when Lima women sold the dish to fund "la causa" (the cause) of soldiers. Likelier etymology: Quechua kausay, meaning sustenance.
When to try it
Order causa on a rainy or cool afternoon in Lima — exactly the weather causa was designed for. It's a great companion to a ceviche order: causa first as a starter, ceviche as the main.