Costeno chile: the coastal salsa chile
Bright orange, thin-walled and sharp. The chile of Guerrero and Oaxaca coastal salsas, and why those salsas get by on three ingredients.
- Heat (Scoville)
- 8,000–15,000
- Recipes here
- 0
- Also sold as
- costeno pepper, chile costeno
Where to buy in the US: Hard to find in US supermarkets and worth ordering online, where it is sold as chile costeño, sometimes split into costeño rojo and costeño amarillo. Mexican groceries in California and Texas carry it more often than elsewhere.
From the Pacific coast of Guerrero and Oaxaca, where the salsas are built differently from the ones inland: fewer ingredients, more acid, and nothing cooked for long.
Bright orange to light red, thin, with a papery wall and very little flesh.
How hot it is
8,000 to 15,000 Scoville. Above a jalapeño, roughly serrano territory, well under a habanero.
It reads hotter than the number because there is so little flesh to dilute it. A salsa made only of costeño lands squarely in the hot range.
What it tastes like
Clean and citrusy, with a fruit note closer to apricot than raisin. There is no earthiness, no smoke, and none of the round sweetness that guajillo or ancho carry.
That clean quality is the whole reason coastal cooking uses it. It sits next to fish and shellfish without covering them.
Why coastal salsas have three ingredients
A salsa from the central highlands might use four chiles, tomato, onion, garlic and spices, cooked down and blended smooth.
A coastal salsa is often just chile, salt and lime, or chile, garlic and water. This is not a simpler tradition, it is a different one — built around ingredients that do not need help.
Two things drive it. The costeño has a clean, complete flavor that does not need rounding out the way a smoky or earthy chile does. And the food it accompanies is fish, shrimp and ceviche, which a heavy salsa would bury.
If you have been making Mexican salsas from long inland recipes, this is the useful lesson to take from the coast: sometimes the fix is removing things.
Red and yellow
Both are sold and they are not the same.
- Costeño rojo is what this page describes: fruity, sharp, around 10,000 SHU.
- Costeño amarillo is milder and more floral, and it is the chile of Oaxacan chilate and yellow moles. Harder to find and usually more expensive.
If a recipe just says costeño, it means the red.
Toasting it
Five to eight seconds a side, and that is not a typo. The wall is thinner than any other dried chile here, and it goes from toasted to burnt in the time a guajillo takes to warm up.
Medium-low heat, and take it off the moment it smells like chile rather than looks like anything.
Ten to twelve minutes of soaking is enough. Longer and it turns to mush and the salsa goes cloudy.
What it goes with
Fish and shellfish, first. Grilled snapper, shrimp, ceviche, seafood cocktails.
Also good on eggs, and it makes a bright, sharp table salsa for tacos when you want heat without weight.
It goes badly with heavy braised meat, where its clean profile just vanishes. Use guajillo and ancho there.
Buying and storing
Bright orange, translucent when held to the light, whole and unbroken. Because the wall is so thin, broken pods are common in a bag, and broken means the volatile oils have been leaking out.
Sealed jar, dark cupboard, about a year — a little less than thicker chiles.