Initially, preheat oven to 200 degrees C. Then to make the base: Put the flour into a large bowl, then stir in the yeast and salt. Make a well, pour in 300ml warm water and the olive oil and bring together with a wooden spoon until you have a soft, fairly wet dough. Turn onto a lightly floured surface and knead for 5 mins until smooth. Cover with a tea towel and set aside. You can leave the dough to rise if you like, but it’s not essential for a thin crust.