Layers of aji-spiced mashed potato filled with chicken or tuna salad, a chilled Peruvian terrine that's as vibrant as it is refreshing.
Causa rellena is a beloved Peruvian dish built from mashed yellow potato seasoned generously with aji amarillo and lime, layered around a filling of chicken or tuna salad, then chilled until firm and sliced into neat portions. Its name derives from the Quechua word for 'cause' or 'sustenance,' with some historical accounts suggesting the dish's simple, filling ingredients supported soldiers or workers in earlier centuries, though its modern form has become an elegant, colorful staple of Peruvian entertaining. The technique that defines causa is achieving the right potato consistency: boiled yellow potatoes (or a substitute like Yukon gold) are mashed while warm and mixed thoroughly with aji amarillo paste, lime juice, and oil until smooth and pliable enough to layer and mold, then chilled until firm enough to hold its shape when sliced. The filling -- typically chicken or tuna salad bound with mayonnaise and avocado -- provides a creamy, savory contrast to the tangy, vibrant yellow potato layers. Served cold, sliced into neat rounds or rectangles and garnished with avocado, olives, and hard-boiled egg, causa rellena is refreshing and visually striking Peruvian party food, equally at home as a starter or light lunch.
Serves 6
Boil potatoes until fully tender, about 20 minutes. Drain and mash while still warm.
Mix mashed potato with aji amarillo paste, lime juice, oil, and salt until smooth and well combined.
Let the potato mixture cool to room temperature.
Combine shredded chicken or tuna with mayonnaise, mixing well.
Press half the potato mixture into the bottom of a lined loaf pan or mold. Layer the chicken or tuna filling, then sliced avocado, over top. Cover with the remaining potato mixture, smoothing the top.
Refrigerate at least 2 hours, ideally overnight, until firm.
Unmold, slice, and garnish with avocado slices, hard-boiled egg, and olives.
Mash the potato while still warm for the smoothest texture; cold potatoes are harder to work into a pliable, moldable mixture.
Chill the assembled causa for at least 2 hours, ideally longer, so it firms up enough to slice into clean, neat portions.
Line the mold with plastic wrap for the easiest unmolding once the causa has fully chilled and set.
Use crab salad instead of chicken or tuna for a more luxurious version.
Make individual causa 'cups' using ring molds for an elegant appetizer presentation.
Add a layer of roasted red pepper for extra color and sweetness.
Refrigerate up to 3 days in an airtight container; causa is meant to be served cold and doesn't require reheating.
Causa is believed to have roots as sustenance food for Peruvian soldiers or workers historically, with 'causa' derived from the Quechua word for cause or sustenance, and it has since evolved into an elegant, colorful staple of Peruvian entertaining and restaurant menus.
Aji amarillo paste is made from Peru's signature yellow chile, providing both the dish's distinctive vibrant color and its mild, fruity heat -- it's genuinely central to causa's identity and difficult to substitute convincingly.
Yes -- it needs to chill for at least a couple of hours anyway, making it an ideal make-ahead dish; it can be assembled up to a day in advance.
It likely wasn't chilled long enough to fully firm up. Refrigerate for at least 2 hours, ideally overnight, before attempting to slice.
Per serving (260g / 9.2 oz) · 6 servings total
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