Is it chili or chile?
Chili is a stew-like soup made with meat, chiles or chili powder (both), and any number of additions like tomatoes, bell peppers, onions, beans, etc. Cincinnati chili is thinner consistency and usually served over spaghetti with some of the common spices cinnamon, chocolate or cocoa, allspice, and Worcestershire. Chile is the fruit of a pepper plant. i.e. jalapeno chile pepper, green chile, chile rellenos, etc. etc. That is why we use chile.
