Preheat the oven to 160°C /fan 140°C /gas mark 3.
Grease an 850 ml ovenproof dish with butter, ensuring it is fully coated on the base and sides.
Add all of the ingredients to the dish and lightly mix.
Bake for 1 hr 45 minutes – 2 hours, or until the rice is tender and a skin has formed on top.
Remove the zest and bay leaf before serving.
Recipe tips: you could serve with jam, fruit compote, or with grated Mevalia Chocotino/ Vitabite.
You can also vary the flavours in the pudding by swapping the nutmeg for a little ground cinnamon.