Combine the milk, cardamom, cinnamon, pepper and saffron in a small saucepan and whisk them together. Place over medium heat, stirring occasionally until hot.
Pour the milk through a fine strainer to filter out the spices (you can put the strainer over your mug and pour the hot milk directly into it). Stir in as much sweetner as necessary to achieve the desired sweetness.
Serve hot and enjoy.
Alternatively, for an even easier version: put all the ingredients into a mug (I leave out the saffron for this version) and microwave on high for a minute or until hot and enjoy without straining.