Aji verde is a creamy, herb-forward Peruvian green sauce built on cilantro, aji amarillo paste, mayo, Greek yogurt, and queso fresco. It takes about five minutes to blend and keeps in the fridge all week. If you want a sauce that works on grilled chicken burgers, beef smash burgers, fries, and pretty much anything else you put in front of it, this is the one to have ready.
Before you start
The only technique that actually matters here is the order you add things to the blender. Start with the wet ingredients — mayo, Greek yogurt, lime juice, vinegar, and olive oil — before adding the cilantro and queso fresco. This gives the blades something to grip immediately and prevents the cilantro from just spinning on top without breaking down. Blend until fully smooth; any visible cilantro flecks mean the sauce will taste uneven and look dull rather than that clean, bright green. Skip trying to hand-whisk this — the queso fresco won’t incorporate properly without a blender or food processor, and you’ll end up with a lumpy sauce no matter how long you work at it.
Common problems and fixes
- Sauce turns gray or olive-colored: Oxidation from over-blending on high heat (friction) or sitting uncovered. Blend in short pulses rather than one long run, and press plastic wrap directly onto the surface before refrigerating.
- Too thin and watery: Cilantro releases moisture as it breaks down. If the sauce looks loose after blending, add another tablespoon of queso fresco and blend for ten seconds — it tightens the texture without dulling the flavor.
- Tastes flat or one-dimensional: The acid is probably off. Add lime juice a teaspoon at a time and taste after each addition; the brightness should hit the back of your tongue. White vinegar alone won’t do the same job as fresh lime.
- Heat level is unpredictable: Aji amarillo paste varies in intensity by brand. Stir in half the amount called for first, taste, then add more. You can always add heat — you can’t take it out.
- Sauce separates in the fridge: Normal. Give it a quick stir or ten seconds in the blender before serving. It comes right back together.
Substitutions that actually work
- Aji amarillo paste: The hardest ingredient to find. A mix of one part jarred roasted yellow pepper and one part jarred jalapeño gets you close in color and heat. Straight jalapeño works too but skips the fruity undertone that makes this sauce distinctive.
- Queso fresco: Feta is the best swap — similar saltiness and crumble. Use about three-quarters of the amount since feta is saltier. Parmesan works but pushes the flavor in a different direction.
- Greek yogurt: Full-fat sour cream is a 1:1 swap. Low-fat versions make the sauce thinner and slightly grainy — not worth it.
- Cilantro: There is no real substitute if you want this sauce. Flat-leaf parsley produces a green sauce, but it tastes like a completely different condiment.
Storage and reheating
Store in an airtight container in the fridge for up to five days. Press plastic wrap directly against the surface of the sauce before sealing the lid — this is the single best thing you can do to keep the color vivid. Do not freeze it; the mayo and Greek yogurt both break on thawing and the texture turns grainy and separated. This sauce is served cold or at room temperature, so there is no reheating involved — just pull it from the fridge about ten minutes before you need it so it loosens up slightly and the flavors come forward.
Peruvian Aji Verde Sauce
Ingredients
- 1 cup fresh cilantro leaves Packed, stems removed for a smoother texture
- 2 tablespoons aji amarillo paste Available at Latin markets or substitute with a yellow chili paste
- 2 tablespoons mayonnaise Adds creamy richness
- 2 tablespoons Greek yogurt Balances tanginess
- 2 cloves garlic Minced for better blending
- 2 tablespoons crumbled queso fresco Can substitute with feta or Parmesan
- 1 tablespoon lime juice Freshly squeezed for best flavor
- 1 tablespoon olive oil Extra-virgin preferred
- 1 teaspoon white vinegar Adds acidity and sharpness
- ½ teaspoon kosher salt Adjust to taste
- ¼ teaspoon black pepper Freshly ground
Instructions
- Add the cilantro, aji amarillo paste, mayonnaise, Greek yogurt, garlic, queso fresco, lime juice, olive oil, white vinegar, salt, and black pepper to a blender or food processor.
- Blend on high speed until the sauce is smooth and creamy. If needed, scrape down the sides and blend again to ensure all ingredients are fully incorporated.
- Taste the sauce and adjust seasoning, adding more salt or lime juice as desired.
- Transfer the sauce to a container and refrigerate for at least 30 minutes before serving to allow flavors to meld.
Notes
- For a spicier sauce, add more aji amarillo paste.
- If you prefer a milder version, reduce the paste by half.
Nutrition
Your questions, answered
Can I make this sauce ahead of time?
Yes — it actually tastes better after 30 minutes in the fridge because the flavors settle and the garlic mellows slightly. You can make it up to two days ahead with no quality loss, which makes it a smart prep-ahead condiment for a burger night.
Where do I find aji amarillo paste?
Most Latin grocery stores carry it, and it’s widely available online — search for brands like Inca’s Food or Goya. Some well-stocked supermarkets stock it in the international foods aisle near other Latin condiments.
How spicy does this sauce actually come out?
Mild to medium — noticeable warmth but nothing that will overwhelm most people. The mayo and Greek yogurt temper the heat significantly, so even at the full amount of aji amarillo paste, it’s more of a background tingle than a burn.
More burger recipes to try
- Angus Bacon Guacamole Burger
- Spicy Jalapeño King Burger
- Korean Fried Chicken Burger
- Veggie Sauce Burger Perfection