Rhubarb make excellent sorbet as you can use the syrup that poach them with for the sorbet giving it an excellent colour and flavour.
Prep: 20 minutes
Cook: 10 minutes
Prep: 15-20 minutes (soak fruit for 2-5 days)
Cook: 2 hours
Prep: 5 minutes plus 30-60 minutes soaking (optional)
Cook: 15 minutes