All ingredients should be at room temperature before processing. Mix the yeast with a little lukewarm milk and a little sugar until everything is liquid and let it rise in a warm place until it has tripled in volume. Sift the flour into a bowl, add the remaining sugar, milk, eggs and the oil. Add the risen yeast and knead everything well until you have a smooth dough that doesn't stick to the bowl. Cover the dough and let it rise in a warm place for another 30-60 minutes. Then knead well again and roll out and place on a coated baking plate (90° angles and an approx. 20mm edge are ideal here). Top with apple slices and sprinkle with cinnamon-sugar and let rise for another half hour. Baking time: Preheat: 165°C 1st step: Hot air mode 0% residual moisture, fan speed 60%, 150°C, humidity flap valve closed, 45 minutes. Step 2: Break for 15 minutes (or 3 x 5 minutes). Tip: You can also sprinkle this simple, classic apple cake with rum raisins before baking. The apple slices can be soaked in light lemon water beforehand to prevent them from oxidizing.