Creme patissiere

Put the milk to boil into a pot. 
Cut open the vanilla pods, put the vanilla cream into the milk and the sticks as well.

In a bowl, mix together the yellow of the three eggs and the sugar until its gets a white color.
Add the maizena and keep mixing.

Once the milk is boiling, pour a bit into the bowl where the eggs, sugar, flour mix is. Mix quickly, and pour everything back into the pot on the fire.
Mix constently for 1 or 2 minutes at low fire. The cream will take shape.
Once the cream is ready, put it in the fridge in order to cool down.