add the flour and fry it stirring constantly. add the milk gradually while mixing it fast with a wisk. 5 minutes after the flour and butter melted fully in the milk, add the sugar.
when it thickens and starts boiling, turn the cooker off and take it to a mixing bowl.
Mix with a mixer (electric? )for 10 mins.
Add the vanilla and mix a few minutes more.
Add the buscuits into a glass dish as one layer.
Pour the half of pudding into the dish.
Place the banana slices and then pour the rest over it..
Until the serving time keep it in the fidge.
Before serving beautify it with (I assume grated )hazel nuts, coconut, pistachio or almonds .
Anndddd....afiyet olsun..