What to use instead of ají amarillo
Quick answer
The closest option is Scotch bonnet with Paprika, rated situational. Both are Capsicum chinense, which is the reason this works at all: they share the fruity, almost tropical ester profile that separates that species from the cayenne-type chillies most kitchens have. What differs is scale — scotch bonnet is many times hotter — and colour, since aji amarillo is orange-yellow and the paprika is there to put that back. The result is recognisably in the same family and is not the same chilli.
It will not do for: Aji de gallina and causa, where the specific yellow is the dish; Any dish where the chilli quantity is large, since the heat becomes unmanageable.
All recorded options
Ranked by suitability. Ratios are given only where they are defensible, and always with their basis — by weight or by volume — because spice densities differ.
Scotch bonnet with Paprika
SituationalUse: ~0.25× by volume — A quarter of the volume in scotch bonnet, made up with paprika for colour and body. Rough, and the heat needs tasting rather than measuring — aji amarillo is a moderate chilli and scotch bonnet is not.
Both are Capsicum chinense, which is the reason this works at all: they share the fruity, almost tropical ester profile that separates that species from the cayenne-type chillies most kitchens have. What differs is scale — scotch bonnet is many times hotter — and colour, since aji amarillo is orange-yellow and the paprika is there to put that back. The result is recognisably in the same family and is not the same chilli.
| Flavour | Aroma | Colour | Heat |
|---|---|---|---|
| partial | partial | close | much more |
Works for
- Sauces and stews where the chilli is blended in
- Anywhere the fruity note matters more than the exact heat
Does not work for
- Aji de gallina and causa, where the specific yellow is the dish
- Any dish where the chilli quantity is large, since the heat becomes unmanageable
Cuisine: Aji amarillo is the single most identifying ingredient in Peruvian cooking. A dish made with scotch bonnet reads Caribbean, which is where that chilli belongs.
Why there is no second option: The two chillies share a species, which no other available option does. Habanero is the same species again and is hotter still and less fruity; guajillo and cascabel were considered for the colour and are Capsicum annuum, with none of the tropical ester profile that makes aji amarillo recognisable. There is no combination that gets closer, which is why the note recommends buying the paste instead — it is sold in jars, keeps for months and is the only real answer. Editorial judgement.
Aji amarillo paste keeps for months refrigerated and is widely sold. For anyone cooking Peruvian food more than once, buying it is a better answer than any substitution here.