Overview

The jalapeño is a medium-sized chili pepper pod type cultivar of the species Capsicum annuum. It is commonly picked and consumed while still green, though it is occasionally allowed to fully ripen and turn red, orange, or yellow. Its flavor is bright and grassy when green, with moderate heat that intensifies as the fruit matures. Heat level ranges from 2,500 to 8,000 Scoville Heat Units (SHU) [1].

Origin and history

The jalapeño is named after the city of Xalapa (Jalapa) in Veracruz, Mexico, where it was traditionally cultivated [1]. It has been a staple of Mexican cuisine for centuries, with domesticated Capsicum annuum varieties dating back at least 6,000 years in Mesoamerica [2]. Mexico is a leading producer, and Veracruz is a primary growing region [1].

Varieties and aliases

  • Green jalapeño: The unripe, most common form, harvested while still green.
  • Red jalapeño: The fully ripe form, sweeter and hotter than the green stage.
  • Chipotle: A smoked, dried jalapeño, typically made from red ripe peppers.
  • Jalapeño M: A milder, larger-fruited cultivar developed for commercial production.
  • TAM Jalapeño: A heatless cultivar bred at Texas A&M University.

Culinary uses

Jalapeños are used fresh, pickled, roasted, or dried. Fresh green jalapeños are diced into salsas, pico de gallo, and guacamole, or stuffed with cheese or meat to make chiles rellenos or poppers. Pickled jalapeños (escabeche) are common as a condiment for tacos, tortas, and nachos. Smoked red jalapeños become chipotles, which are used in adobo sauces, stews, and marinades. The pepper pairs well with onions, garlic, tomatoes, cilantro, and lime.

Cross-cuisine context

The jalapeño is the most widely recognized chili pepper in the United States and has no direct analogue in other LA-relevant cuisines, though its role as a moderate-heat fresh chili is functionally similar to the Korean cheongyang pepper (청양고추) in heat level and the Thai prik chee fah (พริกชี้ฟ้า) in culinary use as a fresh cooking pepper. In Mexican cuisine, the jalapeño occupies a middle ground between milder chiles like the poblano and hotter ones like the serrano.

Notes for cooks

  • Heat varies significantly by individual pepper and growing conditions. The white pith (placenta) contains most of the capsaicin; removing it reduces heat.
  • Fresh jalapeños should be firm, glossy, and free of soft spots or wrinkling. Cracks near the stem indicate age.
  • For a milder substitute, use poblano or Anaheim peppers. For a hotter substitute, use serrano or Thai bird’s eye chiles.