Mix the flour, 30 g sugar and salt, dissolve the yeast in the milk, add to the flour together with the melted butter and work into a smooth dough. Knead until it bubbles and then let rise for at least 45 minutes.
Baking tins with a diameter of 10 to 12 cm and a height of 8 cm, which narrow slightly towards the bottom, grease well with butter and sprinkle with plenty of sugar.
Divide the yeast dough into two parts, roll out each part 1/2 cm thin, fill with cinnamon sugar, roll up.
Cut off 8 cm wide filled pieces and place in the molds.
Let rise again and bake in the oven at 180 degrees for 20 minutes. Immediately fall out of the molds.