Start by smashing the cardamom pods to release flavor and oils. Reserve.
After you brew your coffee, separate 1/2 cup and add to an ice tray. Bring to the freezer to freeze.
To the rest of the coffee, add the cardamom pods, the cinnamon, the vanilla extract and the sweetener. Stir and bring to the fridge overnight (or for at least 3 hours).
When ready to serve, add the ice to the glasses and pour the half and half. Slowly pour the coffee.
Serve immediately!