Chestnut purée
Cook the cooked chestnuts with milk and icing sugar for about 15 minutes, season with rum and mash with the hand masher.
Dough
For the prefermentation mix the crumbled yeast with 1 tbsp. sugar and lukewarm milk. Cover and let it ferment for about 15-20 minutes at max. 35°C
Mix 100 g flour, 100 g chestnut purée, butter, sugar, eggs, vanilla sugar, orange zest, rum and salt with a mixer.
Knead the dough well until you see bubbles, let rise covered for about 15-20 minutes.
Chestnut stuffing
Cut the pears into small cubes, mix with 20g chestnut purée and season with sugar and rum.
Completion
Roll out thin the dough and scoop out round sheets (10 cm Ø), fill with stuffing, fold to crescent shapes, seal well and let raise for another 15 minutes.
Fry in hot oil on both sides at 180°C for about 4 minutes, let drain on a paper towel, sprinkle with icing sugar and serve.