Put the gingerbread in the mixing bowl, chop 12 sec / speed 5 and transfer. Clean the mixing bowl and separate the egg. Insert the stirring attachment. Put the egg white in the mixing bowl, beat 40 sec / speed 3 until stiff and transfer.
Put the mascarpone, quark, orange liqueur, egg yolk, sugar and orange juice in the mixing bowl and stir for 30 sec / speed 3. Add the egg whites and stir in for 10 sec / speed 2.
Drain the mandarin oranges. Layer the chopped gingerbread, mascarpone cream and mandarin oranges alternately in a bowl. Finish with a layer of cream.
Let it steep in the refrigerator overnight. Dust with cocoa before serving.
Tip:
Skip the liqueur, then increase the amount of juice. If you want to save calories, you can use low-fat quark or cream cheese instead of mascarpone.