Mix flour and salt in a large bowl.
Stir in yeast.
Add water and mix with a wooden spoon until sticky and well combined.
Cover tightly and let rise in a warm spot for 1.5–2 hours, or until doubled.
Place 1½ cups cold water in an empty (non-glass) ovenproof dish and set on bottom oven rack.
Preheat oven to 240°C (465°F) fan-forced.
Tip dough onto a floured surface.
Divide into 4.
Stretch to flatten each piece, fold top third down, bottom third up, then gently roll into a log and pinch the ends.
Place seam-side down on a lined tray.
Score tops with a sharp knife.
Bake 15–20 minutes until golden and crisp.
Cool on a rack.
