Panna Cotta's need to be prepared a day in advance, the gelatine should set so the panna cotta is smooth and creamy. The sharp taste of the rhubarb is complemented by the delicate flavour of the panna cotta.
Prep: 30 minutes plus (1 hour for the pastry to rest)
Cook: 15 minutes
Prep: 5 minutes plus 3-12 hours
Cook: 2 hours and 45 minutes
Prep: 20 minutes
Cook: 20 minutes