Add the all purpose flour, yeast and sea salt to a large mixing bowl or your kitchen aid mixer. Mix in the water and stir well until incorporated. Cover the bowl loosely with a kitchen towel or plastic wrap and let it rest at room temperature for 2 to 3 hours. ( you may leave it overnight as well but it is not necessary )
After about 2 hours check the dough and you should notice the surface dotted with bubbles. Turn the dough onto a floured surface and sprinkle it with a little flour. Shape it into a round loaf by folding it over on itself a few times. NO KNEADING Allowed!
Meanwhile preheat your oven to 450"F with a pizza stone inside. I If you don't have a pizza stone preheat a cast iron dutch oven with the lid on instead). Place a baking dish with a couple of inches of water in it on the bottom rack to help create steam inside the oven for a crispy crust.
Sprinkle a pizza peel or a cardboard box with some flour and place the bread loaf on top. Allow it to rest for 45 minutes while the oven warms up. Using a serrated knife make a few slits on top of the loaf.
Sprinkle the pizza stone with a little bit of the semolina flour then gently slide the bread dough onto it just like you would do with a pizza. Cook for about 30 minutes until golden brown. Transfer to a cooling rack and allow to cool down before slicing. For an even crispier crust allow to bread to cool inside of the oven with the door slightly open.
If you don't have a pizza stone you can still bake the bread inside a preheated cast iron skillet or a dutch oven (lined with parchment paper) with the lid on instead (do not preheat the parchment paper with the dutch oven).
What to do with stale bread ?So you forgot you made fresh crusty bread and now have a stale loaf instead ? No problem! It's a sign from the universe that you must hurry and make a big pot of this Italian Bread Soup (pappa al pomodoro) right away ;-)