Add the eggs into a mixing bowl and mix them.
In a bowl, add sugar with the vanilla sugar and mix.
Add the sugar mix and the butter to the eggs, and mix well until smooth and fluffy.
In a bowl, combine flour and baking powder.
Add the flour mixture to the egg mixture and mix well. You will get a sticky dough.
Lastly, add the milk to the mixture and mix until you get a smooth dough.
Preheat your waffle maker well and add a little butter on both cook plates.
Add a portion of the dough with the ladle spoon onto the cook plate. Don't overfill it because the dough might run over the edges.
Remove the waffle when cooked and serve warm.