Chop the apples and cook them with a little water until the desired consistency of applesauce is achieved. Let the applesauce cool down.
Cut the marzipan into small pieces and mix with the raisins into the applesauce. Season the mixture with cinnamon and sugar to taste and pour into a bowl
Mix the mascarpone, natural yoghurt, quark and vanilla sugar and layer on top of the applesauce mixture.
Crumble the speculoos and spread over the mixture just before serving (so that it stays crisp!).
Except for the addition of the speculoos crumbs, the dessert can be prepared and chilled a day in advance.