Mix the flour with the baking powder and vanilla sugar. Pour part of the milk into the flour and stir well with a whisk until all lumps are gone. Pour in the rest of the milk and add the butter, stir well until you have a smooth batter. Separate the eggs. Add the egg yolks to the batter. Whip the egg whites stiff with a pinch of salt and fold them into the batter in two batches.
Preheat the waffle iron well. Brush the waffle iron with some peanut oil. Pour a ladle of batter into it. Close the iron and let the waffle bake until it is done. Repeat until the batter is finished.
Serve the waffles with powdered sugar, enjoy!
Tips
No extra tips needed, Just Enjoy!