Mine is pretty simple, my mum's good old english recipe

Heat oven to 200c
In a baking dish cover bottom with a thin layer of rice
then add water to just cover rice
Put in oven until water is absorbed
Mix in Milk, Caster Sugar (to taste - if it needs more it can be added when cooked), sprinkle either cinnamon on nutmeg on top
add a couple of teaspoons of butter (don't as me why it's what my mum does)
Put back in oven and cook until milk absorbed into rice to consistancy you like.

I will also periodically mix the rice pudding during cooking to mix in the spice and to also remove any skin that has started to form on the top of the rice pudding.

Generally takes about 30-40 mins to cook, and using Full Cream Milk makes the rice pudding more creamier (makes sense lol)

My dad loves to put jam in his when it's cooked, but you could add any type of fruit or fruit puree as well.