Heat the milk slightly and dissolve the yeast in it. Add the egg, butter and vanilla sugar.
Knead a soft dough with the flour. Wrap in stretch wrap and leave in the fridge for a few hours.
Take the ready dough out and shape it into balls.
Make a wick out of each ball, then tie into a knot.
Roll in sugar and arrange in a tray with baking paper.
Bake in a preheated oven to a golden color.