Dissolve the yeast with the sugar in lukewarm water. Add the remaining ingredients and knead thoroughly for five minutes. Let the dough rise in a warm place for at least 30 minutes.
After rising, fold the sticky dough into a loaf several times with damp hands and place it in a greased stone pot with a lid. Dust the surface of the loaf with flour and cut flat several times with a knife.
Put the stone pot with lid in the cold oven on the lowest rack and bake at 230 ° C top / bottom heat for 55 minutes.
The bread is ready, it sounds hollow when you tap it with the handle of a knife.