Mix all ingredients well and leave in large, covered bowl at room temperature for 12 hours. (Can be left longer.)

Set a timer for 30 minutes. Put an empty cast iron pot with lid in the oven and preheat to 450°.

Using a little extra flour to help with stickiness, scoop out the dough and knead into a ball. (Kneading is unnecessary, so don't spend too much time on this.)

When the timer goes off, drop the dough ball into the pot.

If desired, spray the ball with water till glossy and then sprinkle with sesame seeds, poppy seeds, garlic powder, salt, pepper, herbs, or sugar and cinnamon. (You get the idea.)

Cover with lid and bake for 30 minutes.

Uncover and bake for an additional 15 minutes, or until browned to your liking.

Remove from pot and cool on rack.

Serve warm or slice and freeze for toasting later.