Causa Limeña: Yellow Potato & Avocado Towers
A chilled Peruvian classic that's already vegan — because Lima knows how to party without dairy
Causa limeña is Lima's answer to a hot afternoon — layered, cold, and unapologetically bright. This version needs no reworking: yellow potatoes, lime juice, ají amarillo, olive oil, and avocado were always vegan. The rocoto oil is your heat, your theatre, your reason to keep coming back.
How to Cook It
- 01
Boil and chill the potatoes
Peel yellow potatoes, cut into 3cm chunks. Boil in salted water until a knife slides through without resistance — 12–15 minutes. Drain, spread on a tray, and chill in the fridge for at least 30 minutes. Cold potatoes mash like silk and hold their shape.
~20 min - 02
Make the ají amarillo base
In a bowl, whisk together ají amarillo paste, 80ml olive oil, and 80ml lime juice until smooth and emulsified. Taste — you want bright, warm heat, not burnt. This is your glue and your flavour anchor.
~3 min - 03
Mash and season
Pass chilled potatoes through a ricer into the ají mixture, or mash by hand until just smooth — no lumps, no over-working. The texture should be silky and hold a peak. Season with sea salt. Refrigerate until ready to serve.
~5 min - 04
Prepare the rocoto oil
Halve the rocoto lengthwise, scrape out seeds and membranes, finely mince the flesh. Warm 20ml olive oil in a small pan over low heat, add rocoto, sweat for 2 minutes until fragrant but not coloured. Let cool, then strain into a clean bottle. This keeps for 2 days.
~5 min - 05
Build the avocado salsa
Halve, stone, and slice avocados into thin crescents. Toss gently with halved black olives, remaining 20ml olive oil, 20ml lime juice, salt, and most of the chopped coriander. Handle like you mean it — bruised avocado is sad avocado.
~3 min - 06
Layer and serve
Spoon or mould a layer of yellow potato base onto a chilled plate. Crown with avocado salsa. Drizzle rocoto oil in a thin line across the top. Scatter remaining coriander. Serve cold, with a wedge of lime on the side. Eat within 10 minutes of plating.
~5 min
“Use a ring mould or wet spoon to create a neat dome of yellow potato on a chilled white or pale plate — the colour needs contrast. Layer the avocado and olives on top so they're visible, not buried. A thin trickle of rocoto oil across the plate edge is theatre enough. Scatter coriander leaf over. Serve cold, immediately. No fuss, no tweezers.”
First bite: the bright, waxy comfort of cold potato hits first, then ají amarillo's fruity heat creeps in. Avocado adds silken cool. The rocoto oil comes last — sharp, serious, lingering heat that makes you reach for lime. By the last forkful, you're chasing that rocoto-and-coriander high.
Brisk, lime-forward acidity mirrors the dish's citrus punch; Peruvian versions have mineral snap that plays beautifully with rocoto heat
Crisp, clean, no competition — lets the causa sing; the chill amplifies the potato's buttery notes
Blend 4 limes, 1 thumb ginger, 1 litre cold water, 1 teaspoon cane sugar; strain and serve over ice — echoes the dish's brightness without stealing its voice
- ·Don't skip the chill — warm causa is a sad causa; cold potatoes stay silky, not gluey
- ·Make rocoto oil the day before if you're nervous; the heat matures and mellows
- ·Ají amarillo paste varies wildly in salt; taste and adjust before layering — you can't fix it later
Show us yours.
Cooked this dish? Snap a photo, share it here. No filter, no fuss — the good, the wonky, the accidentally set-fire-to.
Sign in to share your photo of this dish.
No one's cooked this yet — be the first.