Make the cream for the first time: beat the yolks with the sugar until it becomes like a cream, then add the starch and vanilla and mix well. Heat the milk and put it over the composition obtained, stirring constantly. Put on the fire and let it simmer for 2-3 min. Let it cool and in the meantime prepare the rolls.
Spread the dough and cut strips about 2 cm wide. They are rolled on metal or wooden tubes, greased with egg and put in the oven at 200 ° until slightly browned. Remove from the tubes and leave to cool. We fill them with the obtained cream and sprinkle powdered sugar.
Put in the fridge and after about 1 hour serve. I also put 4 tablespoons of cream in the cream.