Final answer:
The poblano pepper is used for chile rellenos; it is native to Mexico and has become integral to various global cuisines following the Columbian exchange.
Step-by-step explanation:
The type of pepper used for chile rellenos is the poblano pepper, a mild chili pepper originating from the state of Puebla, Mexico. After being roasted and peeled, poblano peppers are typically stuffed with various fillings, such as cheese or meat, then battered and fried. This traditional Mexican dish reflects the rich culinary heritage that saw the local ingredients such as chilies become integral to cuisines worldwide following the Columbian exchange.
Chilies, including poblano peppers and the capsaicin they contain, have an interesting history and influence on global gastronomy. From the indispensable role of chilies in Indian cuisine after their introduction by the Portuguese in the 1500s to their medicinal properties, the impact of this native Central American species is significant. Today, while China leads the global production, chilies continue to be a key ingredient in a myriad of cultural dishes around the world.