I follow that recipe roughly, although I don't use a real "dutch oven"
but instead a backing tray or roasting pot with a lid (see picture below).
Also I immediately throw the dough in a shape and put the whole thing in
a cold oven.
Here is what I do:
In a bowl, mix 3 cups of flour (460 g) and a teaspoon of salt (4 g) and make
a little bowl in the middle of the flour
Pour 1.5 cups of water (340 g) in the bowl of the flour and add
0.5 teaspoons of yeast (2 g) (the dried one, can also be 1 teaspoon
depending on how fast you'll find it rises, start with 0.5)
and let it sit for about 15 minutes to dissolve the yeast. You can also add
just 1 cup of water for a more sturdy dough that becomes less flat when baking,
but then you will need to knead the dough with your hands.
(you can also skip the waiting, but then the holes in your
bread become bigger if your yeast is really coarse, whatever you prefer)
Mix the yeast, water & flour mixture
Cover with a a plate (or cellophane) for about 10 hours until it has risen
a lot in volume (a few hours more or less do not matter, it
mostly matters whether it got significantly more volume)
Prepare a deep backing tray or roasting pot that has a lid
with a bit of oil or parchment paper. Drop in the dough and
cover with aluminium foil (in case of the backing tray) or put the lid
on (in the case of the roasting pot). The cover/lid is to create a moist
environment inside which allows the ouside of the bread to stay flexible
so that later it can form a nice crust.
Place immediately in the cold oven, turn it on 200 degrees C.
After 35 minutes, take off the aluminium foil or lid and bake
for another 20 minutes.
Done! take it out of the form and let it cool
I often prepare the dough before going to bed. I warm up the oven
slightly (lowest setting is 50 degrees C), then turn it off and put
the dough mixture inside until the next morning. In this warm environment
it will rise nicely, which helps when your kitchen is cold (like in
England).
It sounds like a lot of work, but when you have done it once
it's quite easy. Check out the following table with the step and how
little time it takes.