Add the oil and yeast and mix well. Add enough water to form a soft dough.
Cover and leave in a warm place to rise.
When it has risen, knead the dough again for a couple of minutes and roll it out to 2.5 cm (1 in) thick.
Grease a flat baking tray and place the rolled dough on it. Press fingertips lightly into the dough. Brush with olive oil and sprinkle with oregano/rosemary.
Bake in a hot oven at 200C/400F/Gas Mark 6 for 20 minutes or until top is golden.
*Variations: olives and sun-dried tomatoes can be mixed into the flour.