Jalapeño peppers are commonly used in Mexican cuisine for their bold, spicy flavor. However, there are several other synonyms for these fiery peppers, including chipotle, serrano, and habanero. Chipotle peppers are similar to jalapeños in their smoky flavor, but are made from smoked and dried jalapeños. Serrano peppers are smaller and hotter than jalapeños, with a fruity flavor. Habanero peppers are the hottest of these four, with a fruity taste and intense heat. Ancho peppers, which are dried poblano peppers, are also commonly used as a substitute for jalapeños in recipes. No matter which of these peppers you choose, they are sure to add a spicy kick to any dish.