A jalapeño pepper is a type of chili pepper that is commonly used in Mexican and Tex-Mex cuisine. It is named after the Mexican city of Xalapa (also spelled Jalapa), which is where it is believed to have originated.

Jalapeño peppers are known for their spicy, hot flavor, which ranges from mild to moderately hot, depending on the variety and ripeness. They are often used in salsas, sauces, and marinades, and are also popular as a topping for nachos, tacos, and other Mexican dishes.

Jalapeño peppers are high in vitamin C and other antioxidants, and they have been shown to have anti-inflammatory and pain-relieving properties. However, they can be too spicy for some people, so it’s important to use them in moderation if you are sensitive to spicy foods.