In a large mixing bowl, mix together flour, salt and yeast. Pour in warm water and stir until well combined. The dough will be sticky. Cover the bowl and allow it to rise at room temperature for 3-4 hours.

Scoop dough onto a floured work surface and shape into a ball. Sprinkle flour on top of the dough ball and place it on a piece of parchment paper. Cover the dough with a dry kitchen towel. Allow to rise for 30-60 minutes. At this point you can score the bread if desired.

Meanwhile, place an empty Dutch oven/cast iron pot, with the lid on, into the oven and preheat oven to 450 degrees F.

Uncover dough and lift the parchment paper, with the dough on it, into your hot pan that's been preheating in the oven. Cover with lid and return to oven to bake for 30 minutes.

After 30 minutes, remove lid and bake, uncovered for about 15 more minutes, until golden on top.