Combine all ingredients. A stand mixer will do this job with ease. The dough doesn't need to be kneaded, though, just well combined. Cover with plastic, and let sit overnight at room temperature.
Stir dough down and shape into a round loaf. Set it in a floured towel, and allow to rise 2 hours.
Preheat oven to 450 F with a cast iron pot and lid inside.
Remove the hot pot from the oven. Gently roll the dough into it. Cover with the hot lid and bake 30 minutes.