Put the flour, salt, yeast, olive oil and water into a bowl and, using your hands, mix together for 3 minutes.
When the dough has formed, tip out onto a lightly floured surface and, using your fingers and heel of your palm, knead for 6 minutes.
Put the dough back in the bowl and leave to rise for 1 hour.
Preheat the oven to 220°C/425°F/gas mark 7.
Line a baking tray.
Destalk all the herbs, then rip them up roughly and mix into the dough.
Divide the dough into two pieces and shape each into a ball.
Flatten slightly with your hands and cut two slashes across the top of each one.
Place on the baking tray and bake for 30 minutes.
Transfer to a wire rack to cool.