Prepare Your Starter
Feed your sourdough starter 12–24 hours before starting the recipe to ensure it’s active and bubbly.
Mix Ingredients
In a large bowl, combine the active sourdough starter, warm water, bread flour, sugar, and salt. Stir until you get a sticky, shaggy dough.
Stretch and Fold
Cover the bowl and let the dough rest for 30 minutes. Perform 3–4 rounds of stretch and folds every 30 minutes, allowing the dough to strengthen.
Overnight Fermentation
Cover the dough and let it ferment at room temperature (65–75°F) overnight, or until it doubles in size.
Shape the Dough
After fermentation, gently shape the dough into a log. Place it seam side down into a greased loaf pan.
Second Rise
Let the dough rise again for 1–2 hours, or until it puffs up and slightly domes over the edge of the pan.
Bake
Preheat your oven to 375°F (190°C). Bake the loaf for about 40 minutes, or until the crust is golden brown and the bread sounds hollow when tapped.
Cool and Slice
Remove the bread from the pan and cool it on a wire rack before slicing.