Mix all ingredients for the dough until everything comes together. This is a very wet dough, so do not be alarmed at this stage that the dough is very sloppy.
Do three sets of stretch and folds* (see note) in the first hour after initial mixing - one set of stretch & fold every 20 minutes. After the last stretch & fold, the dough should be nice and elastic.
Let the dough rise in a warm spot for about 90 minutes after the final fold. The dough should double in size.
Use about 75ml of the olive oil and combine with your choice of toppings (except salt). Let the oil infuse while your dough rises.
Prepare a baking tray by lining it with a silicone sheet or baking paper or grease with some olive oil.
Drizzle about 25ml of olive oil on top of the dough before turning it out onto the baking tray. The dough should be able to move around on the baking tray due to the oil.
Use your fingers to spread out the dough until it covers the tray. If the dough doesn't want to spread out to fill the tray, let it rest for 10 minutes and then do some more spreading out. You can also gently pick up each side of the dough and stretch it out carefully.
Add your infused olive oil and toppings and use your fingers to make dimples in the dough. The oil should pool in the dimples. Spread out the toppings evenly.
Preheat the oven to 220°C with the fan on if your oven has one.
Let the dough proof for about 30-45minutes on the baking tray before baking. It should be puffing up in bubbles around your toppings.
Sprinkle the coarse salt evenly on top of the dough just before baking. Bake for about 25 minutes or until golden.