The two part secret of these waffles.
The first part of the secret is, you only can make these while still warm.
The other part lies in the ingredients of the filling.
500 gr Flour
250 gr melted sugar
150 gr brown sugar
50 gr yeast
some (1-2 tablespoons) warm milk
Mix these ingredients together with your hands untill a dough is formed. Let it rise for 45 minutes (room temperature). Knead the dough again with your hands, and form balls out of the dough in the size of a marble.
Make the filling:
500 gr syrup
300 gr brown sugar
75 gr butter
a teaspoon cinnamon.
Make the syrup warm and mix the other ingredients in the syrup. Put a ball in a waffle-iron and bake the waffle golden on both sides. Get the waffle out with a knife, and slice the waffle horizontally while it's still warm. If you'll wait too long, the waffle will break. Put the syrup on one half of the waffle and put the other half on top of it.