Place the puff pastry next to each other on a floured work surface and allow to thaw. Cut out the puff pastry with an oval cookie cutter (10 x 7 cm). Place the rest of the puff pastry on top of each other, roll out and cut out a total of 12 ovals. Place the puff pastry ovals on a baking tray lined with baking paper. Whisk egg yolk and milk, spread the puff pastry thinly and sprinkle evenly with 1 tablespoon of sugar crystals. Bake in the preheated oven (electric cooker: 200 °C/ convection oven: 175 °C/ gas: level 3) for about 12 minutes. In the meantime, peel and quarter the apples and cut out the core.
Dice quarter roughly. Caramelise 100 g sugar in a pot. Add the apples, pour 100 ml water on them and bring to the boil. Cook apples in a closed pot for about 15 minutes until soft. For the cream mix mascarpone, quark, 75 g sugar and lemon juice. Cut open the soles of the shoes horizontally and fill with cream and applesauce
10 minutes waiting time