Bring cream, sugar and vanilla sugar to the boil and simmer for about 10 minutes.
Soak gelatine in cold water. Pour cream into a bowl and let it cool down for about 5 minutes. Stir in espresso powder and squeezed out gelatine.
Rinse 8 timbal moulds or small cups (150-200 ml each) with cold water. Pour in the cream and leave to cool for at least 4 hours, preferably overnight. Before serving, turn out the panna cotta onto plates and decorate with espresso beans.