Put the yeast with the milk and sugar in the mixing bowl and stir for 2 minutes at 37 ° C on speed 1. Then add the softened butter, vanilla sugar and salt and stir for 30 seconds on speed 2. Add the flour and stir twice for 10-15 seconds on speed 6.
Let the dough rise for at least 30 minutes.
Then shape the dough into round rolls, mix the egg yolks with the 2 tablespoons of milk and brush the rolls with them. If you like, you can also sprinkle the rolls with crystal sugar.
Bake in the oven at 180 ° C top / bottom heat for about 20 - 25 minutes.