Combine ingredients in shaker. Add 4-5 milk ice cubes. Shake vigorously. Strain and pour into rocks glass. Garnish with cinnamon stick.
Prior to making the drink, be sure and prepare sufficient milk ice cubes
Inspired by the collection of short stories, Blue Christmas: Holiday Stories for the Rest of Us, this cocktail was chosen as the official Blue Christmas Holiday Cocktail by the editor of the collection, author John Dufresne, on the second episode of CBBC's Drinking With Writers.