Peruvian causa is a chilled, layered potato terrine that originated in Lima and is a beloved part of the country’s coastal cuisine. This vegetarian version swaps the classic tuna or chicken filling for a creamy avocado and tomato mixture, all bound together with a bright, spicy aji amarillo potato mash. It’s a stunning, make-ahead dish that’s perfect for summer lunches, potlucks, or as an elegant starter, and the combination of silky potatoes, zesty lime, and rich avocado is genuinely irresistible.
Ingredients
- 2 lb (900 g) Yukon Gold or yellow potatoes, peeled and quartered
- 1/4 cup (60 ml) vegetable oil
- 3 tbsp (45 ml) lime juice (about 2 limes)
- 2 tbsp (30 g) aji amarillo paste (or 1 tbsp/15 g aji panca paste mixed with 1 tbsp/15 g tomato paste)
- 1 tsp salt, plus more to taste
- 1/2 tsp ground black pepper
- 2 ripe avocados, halved, pitted, and peeled
- 1/4 cup (40 g) finely chopped red onion
- 1/4 cup (60 g) mayonnaise (or vegan mayonnaise)
- 1 tbsp (15 ml) lime juice (from the same limes)
- 1/2 tsp salt
- 1 large tomato, thinly sliced (about 1/4 inch/6 mm thick)
- 1/4 cup (15 g) fresh cilantro leaves, for garnish
- 1 hard-boiled egg, sliced (optional, for garnish)
- Black olives, sliced (optional, for garnish)
Instructions
- Cook the potatoes: Place the peeled and quartered potatoes in a large pot and cover with cold water by 1 inch (2.5 cm). Add 1 teaspoon of salt. Bring to a boil over high heat, then reduce to a simmer and cook until the potatoes are fork-tender, about 15–20 minutes. Drain well and let them sit in the colander for 2–3 minutes to steam off excess moisture.
- Mash the potatoes: While the potatoes are still warm, transfer them to a large bowl. Mash with a potato masher or ricer until completely smooth. You should have about 4 cups (about 1 kg) of mashed potato.
- Make the potato dough: Add the vegetable oil, 3 tablespoons lime juice, aji amarillo paste, 1 teaspoon salt, and black pepper to the warm mashed potatoes. Stir with a spatula until everything is fully incorporated and the mixture forms a smooth, slightly sticky dough. Taste and adjust salt if needed. Let the mixture cool to room temperature, then cover and refrigerate for at least 1 hour. Chilling makes the dough easier to handle.
- Make the avocado filling: In a small bowl, mash the avocados with a fork until chunky-smooth. Stir in the chopped red onion, mayonnaise, 1 tablespoon lime juice, and 1/2 teaspoon salt. Mix well and set aside.
- Assemble the causa: Line a 9×5-inch (23×13 cm) loaf pan with plastic wrap, leaving overhang on all sides. Press half of the chilled potato mixture evenly into the bottom of the pan, using your hands or a spatula to compact it. Spread the avocado filling over the potato layer, then top with the tomato slices in a single layer. Press the remaining potato mixture on top, smoothing the surface.
- Chill and serve: Cover the pan with the overhanging plastic wrap and refrigerate for at least 2 hours, or up to overnight, until firm. To serve, lift the causa out of the pan using the plastic wrap, invert onto a serving platter, and peel off the wrap. Garnish with cilantro leaves, and if using, sliced hard-boiled egg and black olives. Slice with a sharp knife and serve cold.
Tips
- Potato choice: Yukon Gold or yellow potatoes are ideal because they are naturally buttery and mash smoothly. Waxy red potatoes can be used, but they may result in a slightly grainier texture. Avoid russets, as they can become gluey.
- Aji amarillo substitute: If you can’t find aji amarillo paste, use a mix of 1 tablespoon aji panca paste and 1 tablespoon tomato paste. This will give a deeper, less spicy flavor. For a spicier kick, add a pinch of cayenne or a finely minced fresh chili.
- Chill the dough: Don’t skip the chilling step after making the potato dough. It firms up the mixture, making it much easier to press into the pan without sticking to your hands. If it’s still too sticky, lightly oil your hands.
- Make it vegan: Use vegan mayonnaise and skip the egg garnish. The rest of the ingredients are already plant-based.
Serving Suggestions
Serve the causa as a main course with a simple side salad of mixed greens dressed with lime vinaigrette. It also works beautifully as a party appetizer: cut into small squares or use a cookie cutter to make neat rounds. For a more substantial meal, pair it with a bowl of quinoa soup or a corn and avocado salad. A chilled glass of Peruvian chicha morada (a sweet purple corn drink) or a crisp white wine like Sauvignon Blanc complements the citrus and avocado flavors.
Variations
- Classic chicken or tuna: For a non-vegetarian version, replace the avocado filling with shredded cooked chicken or flaked tuna mixed with mayonnaise, lime juice, and a bit of aji amarillo paste.
- Roasted vegetables: Layer roasted red peppers, zucchini, or eggplant instead of tomato for a more robust flavor.
- Spicy kick: Add a finely chopped fresh rocoto chili (or jalapeño) to the avocado filling for extra heat.
- Individual causa: Instead of a loaf pan, shape the potato and filling into small cylinders using a ring mold or your hands. This is a popular presentation in Peruvian restaurants.
Storage and Reheating
Store leftover causa in the refrigerator, tightly wrapped in plastic wrap or in an airtight container, for up to 2 days. The avocado filling may darken slightly, but the lime juice helps slow oxidation. To prevent browning, press a piece of plastic wrap directly onto the cut surface before refrigerating. Causa is served cold, so there is no reheating needed. If you prefer it slightly less chilled, let it sit at room temperature for 10–15 minutes before serving, but do not leave it out for more than 2 hours total.
Frequently Asked Questions
Can I make causa ahead of time? Yes, absolutely. In fact, it’s better made ahead. Assemble the causa completely, cover, and refrigerate for up to 24 hours. The flavors meld and the texture sets beautifully. Just add the garnishes right before serving.
Can I freeze causa? Freezing is not recommended. The potatoes and avocado will become watery and lose their creamy texture upon thawing. It’s best to enjoy it fresh or within 2 days of refrigeration.
What if my potato dough is too sticky? This can happen if the potatoes are too moist. To fix it, add a little more mashed potato or a tablespoon of all-purpose flour, and knead gently. Alternatively, lightly oil your hands when pressing the dough into the pan.
Is aji amarillo paste very spicy? Aji amarillo is moderately spicy, with a fruity, slightly sweet heat. The amount in this recipe gives a mild warmth, not a fiery kick. If you’re sensitive to spice, start with 1 tablespoon and add more to taste.
Can I use sweet potatoes? Yes, but the texture will be softer and the flavor sweeter. Use orange-fleshed sweet potatoes and reduce the lime juice slightly, as they are more delicate. The result will be a less traditional but delicious twist.
What is the best way to slice causa cleanly? Use a sharp, thin-bladed knife and wipe it clean between slices. For the neatest cuts, chill the causa for at least 2 hours (or up to overnight) before slicing.
Related
- Maple Syrup Nutrition: Facts, Carbs & Sugar per Serving
- Maple Syrup Quebec: How It’s Made & How to Use It
- Glutinous Rice vs Sticky Rice: Key Differences
More recipes to cook
Safety notes: safe minimum internal temperatures from USDA FSIS; raw and undercooked fish guidance from the U.S. FDA. Food safety notes
Spotted an error? Tell us and we will correct it (corrections policy).