Soak the gelatine in cold water. Put the cream in a saucepan and heat slowly. Slit the vanilla pod lengthways, scrape out the pulp and add to the cream together with the pod. Add the orange liqueur and sugar and simmer gently for about 15 minutes.
Then take the pan off the stove and remove the vanilla pod. Pour the soaked gelatine into the pan while dripping wet and dissolve completely while stirring. Let the cream cool for about 20 minutes and stir in the crème fraiche.
Then pour the mixture into 2 - 4 cold rinsed molds and cover them in the refrigerator overnight. To serve, turn the well-chilled panna cotta onto a plate and garnish with chocolate sauce and orange fillets.