Chicory was used in New Orleans during the Civil War to stretch limited coffee supplies. Over the years, blending the slightly bitter root with coffee beans became a local tradition.
Combine coffee-chicory blend, milks, and liqueur, and stir to combine well. Refrigerate until well chilled, at least 1 1/2 hours. Serve over ice, garnished with orange twists.
For this recipe, try a coffee-chicory blend such as the one from Cafe Du Monde for the full effect, or use regular coffee for an equally delicious flavor.