Ají Amarillo: Peru's Golden Chilli

Ají amarillo (Capsicum baccatum) — a bright orange-yellow Peruvian chilli with fruity, almost tropical heat — is the single most important ingredient in Peruvian cooking. It appears in ceviche (leche de tigre), in ají de gallina (creamy chicken stew), in causa (layered potato terrine), in huancaína sauce (cheese-chilli dip), and in virtually every Peruvian preparation that calls for heat. It is not merely "hot" — it is fruity, floral, and aromatic, with a moderate heat (30,000–50,000 Scoville) that builds rather than assaults.

- **It is not substitutable.** Habanero is too hot. Scotch bonnet is too fruity-floral. Yellow bell pepper has no heat. There is no substitute for ají amarillo — either use the real thing (available as paste in jars) or accept a different dish. - **The paste form is practical.** Fresh ají amarillo is unavailable outside Peru. The jarred paste (deseeded, cooked, blended) is the standard form used by Peruvian cooks worldwide. - **Three ajíes define Peruvian cooking.** Ají amarillo (golden, fruity, moderate heat), ají panca (dried, dark, mild, fruity-smoky), and ají limo (small, intensely hot, citric). Together they cover the full heat-and-flavour spectrum.