Bring the milk with the rice pudding and a pinch of salt to the boil briefly, then cook on the lowest setting. Stir regularly so that nothing burns.
Just before the end of the cooking time, when the consistency is still a little runny, stir in the steamed poppy seeds and vanilla sugar and finish cooking the rice pudding until the consistency is firm.
Poppy milk rice tastes best when it is served warm. But it is also delicious when cold!
Depending on your preference, you can add more or less vanilla sugar and poppy seeds.