Put the raisins and the syrup in a bowl, and let the raisins get soft.
Crumble the yeast in a bowl.
Heat up the milk and pour it on the yeast and stir until it is lump free. Let the yeast rest fifteen minutes.
Mix the flour, sugar, and salt in a bowl and pour it in the bowl with the yeast and milk and stir together. Add the egg and stir one more time.
Add the butter and work the mixture in to a firm dough. Let the dough rest in the oven without the heat for one hour.
Peel and cut the apples in thin slices.
Start the oven at 170degrees Celsius.
Roll out the dough as a rectangular.
Place the apple slices, the raisins and the vanilla sugar on top of the dough.
Roll the dough together from the short side so you will get a big roll.
Cut the roll in two centimetres wide slices.
Put a baking paper on a baking sheet and place the buns on the paper.
Brush the buns with the leftover syrup and place the buns in the middle of the oven for twenty five minutes.
Take out the buns and let them rest.