Combine flour, starch, sugar, vanillin. Heat the milk, but do not boil. Beat the yolks and add 1/4 of the milk to them while continuing to beat. Pour the dry ingredients into the egg mixture and mix until smooth. Then, what happened, put it in a pan with the rest of the milk. Cook over low heat until thick, stir all the time, let cool under the lid.
Put cookies and sliced bananas in a bowl beautifully.
Pour all the pudding and let stand for a few minutes.
Garnish with cookie crumbs or banana slices.