Cold sauces & condiments
ají criollo
ají criollo · A classic Peruvian cold sauce built on puréed ají amarillo with a loose oil‑in‑water emulsion, fresh herbs, and citrus acid. It is a foundation condiment of Andean and coastal Peruvian cooking—bright, grassy, and assertively spicy. Unlike cooked sauces, it is assembled raw and served at room temperature as a finishing sauce.
The formula
2 parts ají paste : 1 part oil : 1 part acid
Scale by weight. Example: 200 g ají amarillo paste, 100 g neutral oil, 100 g fresh lime juice, plus 15 g garlic, 10 g cilantro, salt. Yields ~400 g finished sauce. Adjust heat by blending with or without seeds and ribs.
Identity
- Made with ají amarillo—not bell pepper, not jalapeño—as the non‑negotiable flavor base
- Raw preparation: no cooking, assembled cold and served at room temperature (or slightly chilled)
- Oil is emulsified into the acid‑chili base, creating a cohesive sauce, not a loose drizzle
- Acid must be fresh citrus (lime) or mild vinegar—brightening the raw herb quality
- Served as a finishing sauce, not a cooking medium
Ingredients
| Base | ají amarillo (fresh or bottled paste) | 2 parts by weight. Fresh pods give a brighter, grassier flavor; bottled paste offers convenience and consistent heat. |
| Acid | fresh lime juice | 1 part by weight. Provides brightness and helps emulsify the oil. Lemon is an acceptable substitute; white wine vinegar works in a pinch. |
| Fat | neutral vegetable oil | 1 part by weight. Neutral oils (soybean, sunflower, grapeseed) let the chili and herbs dominate; olive oil can overwhelm. |
| Aromatics | garlic | ≈15 g per 400 g finished sauce, added raw for a sharp, pungent backbone. |
| Flavor | fresh cilantro (leaves and tender stems) | Adds herbal, citrusy notes that amplify the green, Andean character. Flat‑leaf parsley is an acceptable substitute. |
| Seasoning | fine sea salt | Added to taste throughout blending; assists emulsification and balances heat. |
Method
- 1If using fresh ají amarillo, stem, seed, and rib the peppers, then blend to a smooth, vivid yellow‑green purée. If using paste, measure directly.Seeding removes most of the capsaicin, allowing you to build heat intentionally. Blending fresh peppers creates the base emulsion component.
- 2Add garlic, cilantro, and salt to the chili purée and blend until the herbs are finely broken down and integrated.Combining all solids before adding liquids creates a unified flavor matrix and prevents herb chunks in the finished sauce.
- 3Pour in the lime juice and blend briefly to incorporate.The acid denatures stray proteins and sets the bright, sharp flavor foundation before oil changes the texture.
- 4With the blender running, drizzle in the oil in a thin, steady stream until fully emulsified and glossy.Slow addition creates small oil droplets suspended in the aqueous phase, yielding a cohesive sauce rather than a separated dressing. An immersion blender or whisk works equally well.
- 5Taste and adjust salt, lime acid, and chili heat. For a thinner consistency, add water a tablespoon at a time; for thicker, use less lime juice or more oil.Final seasoning after emulsification ensures correct balance; water or acid fine‑tunes texture without breaking the emulsion.
- 6Transfer to a clean jar or bowl. Use immediately or refrigerate. Allow to rest 15–30 minutes at room temperature before serving if made ahead.A brief rest lets flavors meld and any minor separation re‑emulsify with a stir. The sauce is best served at room temperature to fully express its brightness.
Techniques that matter
Oil‑in‑water emulsification
The sauce is a temporary emulsion: oil droplets are suspended in the acidic aqueous phase by natural surfactants from the chili flesh and garlic. No egg yolk or gum is required, yielding a loose but cohesive pourable sauce.
Raw assembly
All components are blended cold and never heated, preserving the volatile aromatics of cilantro and garlic and the fresh, grassy character of the ají amarillo. Heating would mute color and dull herbal brightness.
Variations & derivatives
Ají amarillo paste only (no fresh)Commercial/restaurant prep
Skips seeding and blending of fresh peppers. Use 200 g quality bottled ají amarillo paste as the base for faster, consistent heat.
With onionCoastal cevicherías
A quarter of a small white onion, soaked in lime juice for 5 minutes then blended, adds sweetness and body.
Lighter, no‑oil versionHealth‑conscious or fasting
Blend ají, garlic, cilantro, lime, and salt without oil. The result is a pourable, sharp sauce used as a finishing drizzle.
With avocadoModern Peruvian fusion
Add ¼ ripe avocado with the oil for a richer, creamier emulsion; avocado fat partially substitutes for oil.
Used in these dishes
Substitutions
- ají amarillo → ají amarillo paste (bottled) — Direct 1:1 weight substitution. Bottled paste is the same chili, pre‑puréed and sometimes lightly preserved with vinegar and salt.
- ají amarillo → habanero or Scotch bonnet — Completely different heat and flavor profile—floral and intense, not grassy. Use half the quantity. Not a true substitute but workable in a pinch.changes result
- cilantro → flat‑leaf parsley — Loses the cilantro‑citrus resonance but provides a green, herbal base. Use equal weight; the sauce becomes more European in character.changes result
- lime juice → lemon juice — Milder acidity, slightly different volatile profile. Substitute 1:1; lemon is the most neutral citrus alternative.
Troubleshooting
Sauce tastes overly hot and one‑dimensional
Too many seeds and ribs included, or too much fresh chili used. Capsaicin concentrates in the pale rib membrane and seeds. → Start with seeded, ribbed pepper. Build heat incrementally by adding back small amounts of seeded rib. Bottled paste gives more control.
Emulsion breaks or sauce looks greasy on top
Oil added too quickly, or sauce left unstirred too long. Without a stabilizer, this is a temporary emulsion that can separate. → Stir gently before each use. If separation is severe, re‑blend briefly— it will re‑emulsify. Adding a small amount of fresh lime juice and re‑blending refreshes texture.
Sauce turns brown or dull green quickly
Fresh cilantro oxidized during blending, or old/dried‑out ají amarillo used. Color degradation is accelerated by heat and air exposure. → Use very fresh cilantro and work quickly. Fresh ají amarillo has a vivid yellow color; older peppers fade to dull orange. Make in small batches and use within 2–3 days for best color.