Mix the flour, yeast, salt, sugar and olive oil in a bowl and add enough water to make a soft dough. Turn out onto a lightly floured surface and knead for about 10 minutes. Shape into a smooth ball and place in a greased bowl. Cover with a tea towel and leave somewhere warm for about 30 minutes.
When the dough has doubled in size, divide into quarters and roll out to rough oval shapes. Scatter with the rosemary and salt and place on the barbecue for 3-5 minutes or until puffed up.
Drizzle with more oil before serving.
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