Preheat the oven to 220 degrees C and lightly spray a medium-sized loaf pan.
Mix all the dry ingredients together with a whisk, and then add water and mix with a wooden spoon to form a sticky dough. Cover the bowl with cling film and set aside for 10 hours in a warm place to rise.
Gently put the risen dough on a floured surface and pull and fold and flip it so the smooth side forms the top of the loaf. Take care not to flatten or press the dough hard since the air bubbles must be retained in the dough.
Preheat a baking sheet in the oven for 15-20 minutes. Put the dough in the prepared loaf pan. Place the pan on the baking sheet and bake for 20 minutes. Then spray a little water into the oven and continue to bake for 20 more minutes to help the bread form a crust. Cool the bread, slice and serve.
Total time does not include 10 hours resting time.