First of all stir flour and sugar in a mixing bowl,then add egg yolk and mix them.Add milk little by little.mixing during adding.
Then pour it in a pot and put it on heat for almost 10 minutes.After 5 minutes grate lemon peel into pot.Heating and mixing until mixture found appropriate concentration.
Cover the dish with cream and put biscuits on it
Then add chocolate powder.
Cover the cream with biscuits and do it until the cream is over
Your dessert is done.Put it in refrigerator for a night and tomorrow morning your dessert is ready for you to enjoy!☺️