Found this recipe on a slimming world syn free rice pudding thread. This one is 1.5 syns.

142g pudding rice
14floz milk (skimmed)
14floz water
8tbsp sweetner
vanilla essence

place milk and water in pan with sweetner and vanilla and gently simmer til disolved.
then place in bowl with the rice and put in oven at 150c for 1hr 30 mins stir after the 1st half hour.
It is very yummy