Mix the water and sourdough discard in a large bowl with a spatula or dough whisk.
350 grams water, 100 grams sourdough discard
Add in the flour and salt. Mix all the ingredients until very well combined. Cover with a plastic wrap or shower cap and allow the dough to ferment at room temperature until almost double in size, or about 7-10 hours. (This is dependent on room temperature).
500 grams bread flour, 1.5 tsp salt
When the dough is ready, preheat the oven to 450 degrees F. Lightly flour your work surface and dump the dough on top. Shaping: To shape the dough, fold all four sides of dough into the center, one at a time. Roll the dough over so the seam is down.Now push the dough away from you with one hand, using the other hand to pull or "spin" it towards you.
Place the dough on a parchment paper, then place it into a cold Dutch oven. Bake for 25 minutes, remove the lid of the Dutch oven, and then bake for an additional 22-25 minutes or until golden brown.
Let cool for at least one hour before slicing. Enjoy!
Notes
This bread takes longer to rise than when using active starter, especially when using cold discard from the fridge.
All purpose flour may be substituted for bread flour.
Like any sourdough recipe, temperature is key to the bulk ferment. In warmer temperatures, the dough will rise faster.