Stir yeast and sugar into the milk and let rise for about 10-15 minutes. Sift the flour into a bowl. Pour the yeast milk into the hollow in the middle. Add salt, vanilla sugar, butter, syrup and eggs. Process everything into a smooth dough. Cover and let rise to double the amount.
Knead the yeast dough again and let it rest for another 10 minutes. Divide the dough into 8 equal pieces. Shape the dough pieces into rolls and devour them into pretzels. Place pretzels on a baking tray lined with baking paper, brush with milk and bake in a preheated oven at 180 ° C for about 20-25 minutes. The time will depend on the size and thickness of the pretzels.
Take out and let cool down completely. Sprinkle with powdered sugar before serving.