My son asks me to make this sometimes daily, total winner. Photo above is a variation listed below.
1/2 cup of medium grain rice, 1/2 cup of white sugar, 1 tsp of vanilla essence and 1 litre of milk (I have used made up milk powder which is wonderful too).
Put all ingredients in heavy based pot, leave on lowest heat setting for around an hour, stir every 10 minutes so, good one to have simmering away while helping with homework.
The version above I made with brown sugar instead of white and served with banana cooked in some brown sugar (great way to use up old bananas).