Kahlúa Cinnamon Spice Coffee Liqueur is a flavored coffee liqueur, "inspired by the traditional Mexican Coffee 'Café de Olla,' which blends coffee, cinnamon, and brown sugar."
Kahlúa Coffee Liqueur is the number one selling coffee liqueur in the world. It's probably most famous for its role in the classic White Russian, as well as a number of other creamy, dessert-esque cocktails. It was first produced in Mexico in 1936, and the modern recipe was apparently reformulated in 1962. The name roughly translates to "house of the Acolhua people," an ancient Mesoamerican people and sister culture of the Aztecs.