Whisk the water & yeast in a Pyrex or other rectangular dish and add the oil and whisk again.
Add the flour and salt and mix really well till everything is combined.
Spread a bit of oil to your cling film or lid and cover and rest for 30 min.
After 30min do 4-6 stretch and folds and cover and rest for another 30 min.
After 30 min do another set of stretch and folds, stretch it out gently and roughly into a small rectangle cover and rest for an hour.
Grease your baking dish and add some parchment paper (greasing it stops the paper moving around when you put the dough in) generously flour the bottom of the dish.
Preheat oven to 230C and put a small dish with water inside (this is for steam)
Flour the top of the dough and Pour it out, hold it above the dish and let it come out, it may take a minute to come out, be patient.
Using a floured dough scraper or a metal spatula push the sides in to create a thick rectangular shape (if it starts sticking when you're doing this sprinkle some more flour) sprinkle a little more flour so the tea towel doesn't stick, cover and rest for 30 min
Drizzle with olive oil and Bake for 10 min with water, turn oven down to 220C and bake 20 - 25 min.
If the underside needs browning a bit you can Flip and bake for 3-5 min.
