Boil the pudding made from milk, cornstarch and vanilla sugar (extract / pulp) and finally stir in the egg yolks. Let cool down.
Whip the cream with vanilla sugar until stiff. Carefully mix the portion of the cream for the cream with the previously stirred pudding.
Pour part of the cream into the glasses, then the apple puree and finally the rest of the cream on the glasses. Sprinkle a cream tuff on each and garnish.