Quick overview of mix day and bake day
I will follow this post eventually with discussion and excruciating detail of each step, whether anyone wants it or not. Heh.
Feed the starter at breakfast time.
Wait until early/mid-afternoon, until starter has at least doubled in size.
Weigh or measure water into mixing bowl (355g). Add the "ripe" starter (50g) to water and mix.
Weigh or measure flour (500g) and salt (11g) and add to mixing bowl.
Wearing a glove or gloves, mix all ingredients into a shaggy dough, just enough to incorporate all of the flour. Cover bowl with plastic wrap and rest for 15-30 minutes. Wet clean hand or glove and mix the dough thourougly. Re-wet hand or glove to minimize sticking. Mix until the dough is smooth. Cover with plastic wrap.
Wait about an hour.
While waiting go watch a youtube video or read an illustrated blog post about stretching and folding dough.
Stretch and fold dough in the bowl. Wait 1/2 to 1 hour and repeat. Repeat the wait and stretch and fold 3 more times, for a total of 5 times.
Bulk ferment until bedtime. That just means leave it alone in a warmish spot. At bedtime, place bowl either in fridge or a spot that will stay 50 degrees f or below overnight.
Shape dough. In the morning, gently move dough from bowl to clean work surface. Pre-shape dough, rest 15 minutes, final shape dough and place in parchment lined dutch oven for final proof.
Final proof for sourdough is not a timed thing -- there are too many variables for that. However, 2 1/2 hours is about the median time in my experience. You know its ready when you gently poke it and the indentation slowly recovers, but not all the way.
Prepare 36 charcoal briquettes. If you have a chimney, the coals will be ready about 10-12 minutes after lighting. You may and may not need all of the briquettes, depending on your dutch oven size, the weather and wind, and the mood of the sourdough goddess, I think. So just start with 36 and adjust as you learn.
Score the boule. This means making a cut or cuts to control where the oven spring happens and prevent cracking and expanding in awkward places.
Place 12 bricquettes in a ring under and just at the edge of the oven. If you place them all the way under, your bottom crust will burn.
Place bricquettes in a ring on top at the far edge of the lid. Lean 4-6 more bricquettes on the first ring, as close as possible to the ring of coals. Set the few remaining coals aside.
Set a timer for 22 minutes. You can lift the lid and peek now, but make it quick! You're looking for "oven spring" - did it puff up taller? did your score open and does it now look bulgy and have bubble spots? If so, do a happy dance. Is the bread still pale, but beginning to color? That's perfect.
Set a timer for 22 more minutes. Place remaining coals near edge of lid. If your boule was ghostly pale when you looked, remove the coals about 3 at a time, knock off ash and replace. Ash is the enemy of heat, and if your bread isn't browning yet, give it all the heat you have. Tap the ash off of the coals underneath, and tuck them a smidge further under the edge.
Your bread is done when it is 195-210 degrees f internally. Test that when the timer goes off if you have a thermometer. If not, go by the crust. It should be a lovely caramalized color if your world is perfect. But anywhere from pale golden to nearly burnt is just fine. This is camp cookery, not a pro bakery with $100k baking ovens!
Place on rack to cool for at least 1 hour. 12 hours is best for fully developed flavor. Alternatively, rip it open while piping hot and slather with butter and share with people you like