Ají amarillo has been cultivated on the Peruvian coast since at least 4,000 BCE — it is one of the oldest cultivated chilli varieties in the world. Its name means "yellow chilli" in Spanish, though fully ripe ají amarillo is vivid orange rather than yellow. It is considered the most important ingredient in Peruvian cooking — without it, most of the country's signature preparations cannot be made authentically.
Ají amarillo (Capsicum baccatum) — the vivid orange-yellow fresh chilli that is the flavour foundation of Peruvian cooking — possesses a heat, aroma, and flavour profile that is categorically distinct from any other chilli variety in the world. Its fruity, tropical-adjacent aromatic compounds (particularly the specific capsaicinoid and terpene profile of C. baccatum) combined with its clear, orange heat produce a chilli that flavours as much as it heats. It is not interchangeable with jalapeño, habanero, or any other variety.
**Forms and availability:** - **Fresh:** The preferred form — vivid orange, approximately 12–15cm long, moderate heat with tropical fruit notes. - **Paste:** Blended and often deseeded — the most practical form for most preparations. Available in Peruvian and Latin American grocery stores frozen or jarred. - **Dried (ají mirasol):** The sun-dried form of ají amarillo — used in stews and sauces requiring a more intense, less fresh character. **Preparation:** - Remove seeds and veins (which contain the highest capsaicin concentration) for moderate heat. Retain some for full heat. - Blanch in water 2–3 times to moderate bitterness while retaining the fruit character. - Blend smooth for paste preparation. **Heat level:** 30,000–50,000 SHU — comparable to cayenne, but the aromatic profile is completely different. The heat is clean and specific, not diffuse. **Applications:** Ceviche (HS-01), causa (layered potato preparation), ají de gallina (creamed chicken sauce), papa a la huancaína (potato in spiced cheese sauce).
Peru