Add flour to a large bowl, add yeast to one side, salt to the other and mix to combine.
Add water and use silicone spatula or dough scraper to combine
Cover with 2 tablespoons of olive oil
Cover and put into the fridge to prove overnight (18-24 hours)
Oil and line a large overproof dish (Cast iron is ideal)
Remove dough from the fridge and add to the dish (cover if you wish to prevent drying
Leave to prove on the counter for around 2 hours (large bubble should be visible on the surface of the dough)
Preheat your oven at 200c
Once your oven is preheated, drizzle the remaining oil over the top of the dough. Press your fingers into the dough , making deep holes then sprinkle with sea salt and rosemary.
Cook for around 30mins, or until the top is golden and the underside is cooked.
Leave on a wire rack to cool slightly and then serve warm.
