Put the flour in a bowl and press a depression in the middle. Crumble yeast into it. Heat 100 ml milk and add it together with about 1 tablespoon of sugar to the yeast. Mix with some flour from the rim to a thick mash. Cover and leave to rise in a warm place for about 15 minutes. Mix raisins with rum and set aside.
Warm up the remaining milk. Add milk, remaining sugar, eggs, soft fat in pieces, salt and lemon peel to the pre-dough and knead everything well. Cover and leave to rise in a warm place for about 15 minutes. In the meantime wash and peel the apples and cut out the core. Cut apples into thin slices and mix with lemon juice. Mix apple pieces and raisins into the dough and let it rise for another 20-30 minutes. Heat the frying fat in a pot (medium heat approx. 160 °C). Use two floured tablespoons to cut small doughnuts from the dough and bake in portions (5-6 pieces) in hot fat for 6-8 minutes until golden brown. Mix the remaining sugar and cinnamon. Drain the finished doughnuts well and turn in the sugar mixture. Keep warm.
Mix apple pieces and raisins into the dough and let it rise for another 20-30 minutes. Heat the frying fat in a pot (medium heat approx. 160 °C). Use two floured tablespoons to cut small doughnuts from the dough and bake in portions (5-6 pieces) in hot fat for 6-8 minutes until golden brown. Mix the remaining sugar and cinnamon. Drain the finished doughnuts well and turn in the sugar mixture. Keep warm. Serve the doughnuts still lukewarm if possible. Makes approx. 24 pieces