In a small bowl, combine all the ingredients and whisk gently to combine.
3/4 cup chili powder, 1/4 cup ground coffee, 1/4 cup paprika, 1/4 cup ground cumin, 1/4 cup brown sugar, 2 teaspoons salt, 2 teaspoons dry mustard, 2 teaspoons ground coriander, 2 teaspoons fresh ground black pepper, 1 teaspoon cayenne pepper