Whisk together the espresso and warm honey in a heatproof measuring cup with a pour spout. Pour an equal amount of the sweetened espresso into each of two serving mugs.

Whisk the milk and the cardamom together and then froth and heat the milk using a milk frother. If your frother doesn’t have a heating mechanism simply warm the milk in the microwave before adding the cardamom, 30 to 45 seconds on high, until it reaches your desired temperature.

Pour the frothed milk into the mugs with the espresso. Sprinkle with ground cardamom before serving.