Put the flour in a large enough bowl. Make an indentation in the center, crumble the yeast into it and sprinkle the sugar over it.
Stir with a little lukewarm water to form a dampfl. Cover the dampfl and let it rise for about 20 minutes.
Add the butter, salt and remaining water and knead into a smooth dough. Cover the dough and let it rise until it has doubled in volume (about 1 hour).
Then knead the dough again heartily, divide it into about 16 pieces of the same size and form them into round, or elongated rolls (roll them between your hands, using a little flour for this purpose).
Place the rolls on a greased baking tray (or with baking paper).
Score the surface of the rolls with a sharp kitchen knife and let them rise again for about 30 minutes.
In the meantime, preheat the oven to 220 °C.
Bake the rolls for 25 minutes until golden brown.