Warm milk and dissolve the yeast in the milk.
Add sugar, oil, and eggs.
Stir well.
Add most of the flour and salt and mix with a machine.
Add more flour if necessary.
Add butter and knead the dough smooth and elastic for 5-7 minutes.
Let it rise to double its size - about 45 minutes.
Chop the chocolate coarsely and mix all ingredients for the filling together.
Then roll out the dough into a large rectangle about 35 x 35 cm.
Spread the filling over the entire dough and roll the dough tightly into a log.
Cut pieces about 3 cm thick and place them in a baking pan lined with parchment paper.
Let the rolls rise again for about 30 minutes.
Brush with egg and bake for about 15-20 minutes at 200 degrees Celsius (392 degrees Fahrenheit) conventional oven.
It's okay if the rolls grow together!
Mix all ingredients for the icing together - make sure it's thick and delicious.
Spread the icing over the rolls before serving!
Enjoy your baking!