Dissolve espresso powder in 2 tablespoons of hot water. Stir cream and pudding powder until smooth. Bring 400 ml milk and 4 tablespoons sugar to the boil. Stir in the pudding powder and espresso. Bring to the boil and simmer for about 1 minute.
Allow to cool briefly. Stir the pudding through and divide into four glasses. Put them in a cold place.
Mix cinnamon and 1 tablespoon of sugar. Froth 200 ml of milk using a milk frother or heat it up in a pot and froth it up by stirring vigorously with a whisk. Pour the milk foam onto the pudding and sprinkle with cinnamon sugar.
Serve immediately.