If desired, rim two serving glasses with vanilla frosting or glaze. Set the glasses aside.
In a blender, combine the vanilla ice cream, freshly brewed coffee, and 1 teaspoon of ground cinnamon. Blend until the mixture is completely smooth and creamy.
Carefully pour the blended coffee shake into the prepared glasses. Top generously with whipped cream and a light sprinkle of ground cinnamon before serving immediately.
Notes
This shake is best enjoyed immediately for the freshest taste and texture. For an extra rich flavor, use a good quality vanilla ice cream.