Put 400 g flour (type 550), 1 teaspoon salt and approx. 220 ml water in a large bowl. Knead with your hands for about 10 minutes to a smooth dough. Wrap in cling film and let it rest for at least 2 hours. Divide the dough into approx. 12 equally sized pieces. Roll out each one on a little flour to form round flat cakes as thin as possible. Bake one after the other for about 1 minute on each side in a hot coated pan (they are done when bubbles form) and cover with foil until serving.