Soften the gelatin sheet in a bowl with cold water.
Cut the vanilla pod in half lengthways and scrape out the seeds. Heat up the vanilla seeds and vanilla pod with the cream and sugar in a pot. Do not let the liquid boil.
Firmly press out the gelatine and stir into the cream mixture until it has completely dissolved. Then pour into 2 glasses (each 200 ml) and chill for approx. 4 hours.
Sort out the raspberries. Wash the lemon balm and shake dry. Garnish the chilled panna cotta with raspberries and lemon balm. Enjoy!