1: Making the dough
In the pan: Melt the butter, cool down a bit, mix with caster sugar and salt.
Mix the flour with baking powder, cinnamon, egg and beer (or milk). Add the butter mix from the pan until a smooth dough is obtained. Don't knead too long. Leave the dough in a bowl covered for 45 minutes at room temperature.
2: Making the Syrup
Melt the syrup, butter and caster sugar in a pan until the sugar is completely dissolved. Let the moisture boil out a little so that the syrup thickens.
Add the salt, cinnamon powder and vanilla and stir well. Allow the syrup to cool until it is lukewarm. Note: boiling syrup is 170 degrees hot. So never taste, but cool this first.
Shape the dough into balls of approximately 30 grams. Bake the dough balls into waffles in the waffle maker (180 degrees, 1 min).
Cut the waffles in half horizontally as quickly as possible after baking. Smear one side with the syrup, put them back together and press gently. Make a circle with the cutter. Keep the leftovers in a container.