Add all the dry ingredients to a big bowl. Use a wire whisk or your hand to get the ingredients evenly distributed. (I use my Pyrex casserole dish).
Add room temperature water/liquid. Stir everything together with your hands or spatula/rubber scraper.
Cover this with plastic wrap or some other tight cover and let it sit in a room temperature spot for about 4-18 hours.
Use the handle of a wooden spoon or similar utensil to push down the dough, then stir it into a ball in the bowl. If the dough is still very wet, you may need to sprinkle a bit of flour on the dough to help it form.
Alternatively: Scrape the dough out of the bowl and onto a well floured surface. Flatten the dough out with your hands into a rough a square and then fold it over itself a few times, than tuck the ends under forming a loose ball.
Clean the bowl/dish just used, line with parchment paper and lay this ball, seam side down, into the bowl. Top with seeds, etc if desired at this point.
Loosely cover this with a dry, clean, lint-free towel. Let it rise for about 2 hours.
After about 90 minutes, put the Dutch Oven, without lid, in oven and turn on to 450. Let heat for 30 minutes.
Lift parchment paper, if using, from bowl and set in Dutch Oven. If not using parchment paper, turn dough from bowl into Dutch Oven. Slice/cut the top as desired.
Cover with lid and bake for 30 minutes, remove lid and bake for 15 more minutes.
Remove from oven, remove from Dutch Oven and let sit for at least 15 minutes before slicing.