Method

Panna cotta:
Heat the milk, sugar, cardamom and zest, until scalded
Take off the heat and leave to infuse for at least 15 minutes
Soak the gelatine in cold water for 5 minutes until soft
Strain the mixture, return to a low heat and add the cream while warming it through
Gradually whisk in the white chocolate until melted
Add the gelatine leaves to the mixture
Pour into a glasses or moulds
The panna cotta needs about 3 hours in total to set

For the sauce:

Add all ingredients into a pan and gently simmer until the liquid is staring to thicken

Serve warm