Chili powder is a spice blend that is commonly used to flavor chili and other dishes. It typically includes a combination of spices such as paprika, oregano, cumin, garlic powder, onion powder, and cayenne pepper. It's important to note that in the US, chili powder is a blend of spices, not one specific dried and ground chili. While it usually includes chili pepper, it also contains other spices like cumin and paprika. Therefore, it is not simply a powder made of chilies, but a blend of various spices used to flavor chili and other foods