Using fresh yeast will make the dough softer and fluffier, so crumble the yeast into a deep bowl and add 2 teaspoons of sugar.
Mash the contents with a spoon. Pour warm milk over the mixture and cover the bowl with a towel, letting it sit for 15 minutes.
In a separate bowl, beat the eggs with the remaining sugar and salt until fluffy.
Add butter to the mixture, stir and sift in flour. Mix well.
Cover the dough with a napkin and leave for 40–50 minutes.
For the filling, finely chop or grate the apples and mix with cinnamon. Drain any juices.
We lay out the dough, knead it, and divide it into two parts. Then, using our hands, form it into a rectangular layer about 5 mm thick. You can, of course, use a rolling pin.
Spread the filling evenly over the pastry sheet. Sprinkle the fruit filling with a little sugar and roll it up carefully, but not too tightly.
Then cut the rolled roll into equal pieces. You should have about 8-10 pieces. Each piece will be a future bun. In this way, prepare the next portion from the second piece of dough.
Place the buns on parchment paper. Bake them for 20 minutes at 200 degrees Celsius, until golden brown.