Prepare a soft (!) Yeast dough from flour, yeast, sugar, water and salt. Let the dough rise for about 1 hour.
In the meantime, fry the diced bacon or ham together with the diced onion and then leave to cool. Then mix the bacon and onion mixture with the grated cheese into the yeast dough. With floured hands, pull out the rolls as you like - do not shape them - and place them on a baking tray lined with baking paper.
Bake in the preheated oven at 200 ° C for about 20-30 minutes. Spray with water or beer towards the end of the baking time.