In a large glass bowl, combine flour, salt and yeast.
Stir in the warm water with a wooden spoon.
Combine until the dough can form a messy ball.
Cover with saran wrap and let sit and get happy for 12 -18 hours (overnight is great)
Lightly flour your hands and turn dough onto itself a few times. Cover with wrap again 15 min.
On a lightly floured cotton towel (and old pillow case is fabulous) place bread in ball shape on the towel...sprinkle with flour and cover the towel onto the bread. Sit for 2 hours. (don't use terrycloth)
Heat oven 450 and place cast iron dutch oven inside. Heat it for 30 minutes.
Flip dough ball into the hot dutch oven (it will look messy...all is well though)
Cover and bake 30 minutes.
Uncover and continue to bake 20 minutes.