Cream butter, 1 pinch of salt and sugar. Stir in the eggs one by one. Mix flour and baking powder, stir in with the milk. Halve the dough
Stir vanilla sugar and rum into the remaining dough
Preheat waffle iron, grease. Place 1 ladle of dough in the middle of each waffle iron and bake until golden brown. Warm the waffles in a hot oven or bake them directly at the table. Dust with icing sugar