For the compote, peel, quarter, core and chop apples. Bring apple juice, 2 tbsp. sugar and cinnamon to the boil in a saucepan, cover and simmer for about 10 minutes until the apples start to crumble. Let cool down a little.
Coarsely crumble the cookies with your hands and, except for about 2 tbsp. for decoration, place them in a large glass bowl (approx. 2 l capacity). Spread the compote on top, and add the cranberries in splotches. Let it cool down.
For the quark, stir the quark, 3 tbsp. sugar, vanilla sugar, lemon zest and juice until smooth. Whip the cream until stiff. Fold into the quark with chocolate shavings. Spread on the compote and sprinkle with remaining crumbs.