Cincinnati chili vs chili powder

Cincinnati chili

noun
  • A regional style of chili con carne, especially in the greater Cincinnati area, characterized by seasonings such as cinnamon, cloves, allspice, and chocolate, and commonly served over spaghetti or as a hot dog sauce. 

chili powder

noun
  • Pulverized dry chilis used for culinary purposes. 

How often have the words Cincinnati chili and chili powder occurred in a corpus of books? (source: Google Ngram Viewer )