Cut the muffin into small cubes. Mix the quark, sour cream, vanilla sugar and sugar with the pear juice until smooth. Dice the pears as well.
Layer everything in 4 glasses (e.g. whiskey glasses): first cake cubes, then pears and finally sour cream. Of course you can also repeat the order and do a total of 6 layers (or more). I decorated with a few cake cubes and a slice of pear each. Let it steep in the refrigerator.
Tips: Of course, instead of the muffin, you can also use another (home-baked) chocolate cake and / or cook / steam fresh pears yourself.
You can also soak the cake cubes in the glass with a few drops of alcohol of your choice (for me it was amaretto).