Break the cinnamon stick into pieces and add them to a shaker. Add orange zest and juice and muddle it up. Add whisky and orange juice and shake it.
Add ice to a glass and double strain the cocktail into the glass. Top it up with a little soda and add some orange slices. Serve immediately.
Notes
Please make this cocktail with freshly squeezed or packaged orange juice. if using fresh orange juice, use it immediately as the juice gets bitter with time.
Same goes for the cocktail as well. Serve it immediately as the liquids tend to separate and settle if left to sit.