# Prepare the cream which includes milk
, starch and sugar
, remove from the stove, and add vanilla and margarine, and blend the cream for 15 minutes.
# Lay nylon on an oven tray, the edges of the nylon should be out of the tray.
# Pour 1-2 tbsp cream on the nylon, place 3 petit beurres crosswise and 5 petit beurres vertically, and repeat this action for 15 biscuits. Pour cream all over the biscuits and flatten it.
# Prepare the second and the third floor of the cream cake as the first one, increase the measure of the cream a little bit.
# Place the banana
on the biscuits whish are in the middle.
# Shape the flat cream cake to the triangle by the help of the nylon under it.
# Cover the cake with the remaining cream, cover the nylon.
# Refrigerate overnight. The day after remove the nylon and serve.