Begin by brewing your chosen medium-dark roast coffee.
Allow the coffee to cool to room temperature or refrigerate for a faster chill.
In your serving glass, introduce the brown sugar syrup and ground cinnamon.
Fill the glass with ice cubes up to three-quarters full.
Pour the cooled coffee over the ice.
Add cream or milk to your preference, giving it a gentle stir.
For an elegant finish, garnish with a cinnamon stick and a light dusting of brown sugar.