Current, basic sourdough recipe and method

Ingredients

If flour under 12% protein content, bolster using 3g vital wheat gluten per 100 grams of flour. For starter amount, summer or winter, I usually add between 120 g and 130 g which is more than 20%.

67% hydration)

300g water  
 10g salt
450g flour
100-130g starter

70% hydration

350g water  
 10g salt
500g flour
100-130g starter

Method

Want to watch a 60-second video of someone doing the whole thing?

1. Starter/levain...
Anywhere from 90g (summer) to 130g (winter), but I land higher than 120g.
 
2. Ragged dough...
Whisk flour and salt together in separate bowl.
Whisk starter/levain and water in main bowl.
Add dry to wet and mix using a Danish whisk or use a stand mixer.
Cover and rest for 1-2 hours autolysis.
 
3. Stretches and folds...
Execute series of 4 stretches and folds, 30 minutes apart.
If window test fails, do a fifth set.
 
4. Ferment...
Place in marked proofing container and ferment to double.
This takes hours and must be watched.
 
5. Pre-shape...
Pre-shape pâton without deflating.
Rest uncovered on surface for 20 minutes.
(I use sprinkled flour here to work around stickiness.)
 
6. Final-shape and cold ferment...
Final-shape pâton with tension and place into banneton.
 
7. Cover and refrigerate banneton overnight or longer.
 
8. Bake...
Preheat oven (and dome/Dutch oven) to 430°.
Spray parchment and sprinkle lightly with cornmeal.
Remove banneton from refrigerator, invert onto parchment, slash.
Transfer from parchment to cooking dome bottom and cover.
Put dome/Dutch oven into oven and bake for 30 minutes.
Uncover and bake for 15 minutes more.