In a large bowl mix flour and yeast together then add salt and water. Work out the dough either using your hands or electric appliance and you should have very wet mixture. Leave it in a bowl, drizzle with olive oil and cover with cling film. leave in a fridge overnight. Next day uncover dough and fold it over few times. Transfer it onto greased enamel tray and let the dough proof in a room temperature until it spreads over a whole tray. Takes around an hour maybe 2 hours. Sprinkle with chopped garlic and rosemary and drizzle generously with olive oil. Using your finger tips press gently garlic and rosemary inside and put the tray in the oven. Bake until golden brown.