Put the water and yeast in the bowl. Add flour and mix for 20 seconds on speed 3.Put the dough in a bowl or leave it in the bowl without a lid and cover with a cloth. Leave to rest for 2 hours.Place a container of water at the bottom of the oven. Divide the dough in 2, flour and form 2 balls of dough on a baking mat. Make slits with the blade of a knife. Bake for 30 minutes at 240°C.