In a small bowl, combine all the ingredients and whisk gently to combine.
¾ cup chili powder, ¼ cup ground coffee, ¼ cup paprika, ¼ cup ground cumin, ¼ cup brown sugar, 2 teaspoons salt, 2 teaspoons dry mustard, 2 teaspoons ground coriander, 2 teaspoons fresh ground black pepper, 1 teaspoon cayenne pepper