900g Sourdough Bread Recipe: Autolyse Kickstart for Maximum Flavor Development

Baking a 900g sourdough bread recipe with autolyse transforms your kitchen into a bakery—crusty exterior, airy crumb, and deep flavor that develops over time. This method simplifies traditional techniques while preserving the artisanal soul of sourdough, using precise hydration and fermentation control for predictable results every time.

The autolyse stage (mixing water and flour first) kickstarts gluten development, making handling easier while building structure for that signature open crumb. We'll use a 70% hydration ratio—high enough for flavor but manageable for home bakers—and focus on temperature control during fermentation to ensure optimal rise without overproofing.

By the final bake, you'll achieve a golden, crackling crust with a tender interior that crumbles just enough to hold onto every flavor. The long fermentation (12-16 hours) creates complex, tangy notes that store-bought bread simply can't match, making this loaf worth the wait.

Perfect for slicing fresh or toasting, this recipe scales well for home ovens while delivering professional-quality results. Let's begin with the starter—where the magic truly starts.

Ingredients for 900g sourdough bread

High-protein flour and active starter form the foundation for this artisanal sourdough loaf.

The bread flour is non-negotiable—King Arthur or Caputo varieties deliver consistent gluten structure. Your starter should be peaked and bubbly (test by poking it: if it springs back slowly, it's ready). For water, room temperature is critical—too cold slows fermentation, too warm overproofs. King Arthur also sells pre-mixed sourdough flour blends if you prefer convenience. Store your starter in a glass jar with a loose lid to allow CO₂ escape while maintaining humidity.

No active starter? King Arthur's sourdough starter kit gets you going in 5 days. Short on time? Instant yeast at half the starter amount works in a pinch, though flavor won't develop as deeply. The olive oil should be extra-virgin and fruity—none of that cheap cooking oil. For scoring, lamé or a razor blade creates clean cuts, but a sharp serrated knife works too. If your kitchen runs hot, chill the dough overnight before final proof to prevent overproofing.

Flour keeps indefinitely in airtight containers; salt lasts 1 year. The starter thrives at 70°F (21°C)—use a proofing box if your kitchen fluctuates. For best results, bake within 8 hours of final proof. The loaf's crust develops 10 minutes after oven insertion, so time your bake carefully. Store wrapped in a toweling-lined bag to maintain moisture for 3-4 days at room temperature.

Step-by-step instructions for 900g sourdough bread with autolyse

Master this autolyse technique to develop superior gluten structure and flavor in every loaf.

In a large mixing bowl, combine the 3.75 cups unbleached bread flour with the 1.75 cups filtered water at room temperature. Use your hands or a dough whisk to break up any dry flour pockets until a shaggy, sticky dough forms. This initial hydration period—called autolyse—allows gluten to relax and develop more efficiently during mixing.

Cover the bowl with plastic wrap or a damp towel and let rest for 30-60 minutes. You'll notice the dough transform from rough and uneven to smoother and more cohesive. This resting period is critical—it prevents overworking the gluten later when we add salt and starter. The dough should feel slightly tacky but not wet when you press your finger into it.

After the autolyse, add the 0.5 cup active sourdough starter, 1.5 tsp kosher salt, and 1 tbsp olive oil to the dough. Using a dough scraper or your hands, gently fold these ingredients into the center of the dough, then stretch and fold the dough from the edges toward the center to incorporate everything.

Perform this stretch-and-fold technique three times, rotating the bowl 90 degrees after each fold. This method strengthens the gluten network without overworking the dough. The dough will feel more elastic but still slightly sticky. If it becomes too sticky to handle, wet your hands with a little water to prevent sticking.

Cover the bowl again and let the dough rest for 30 minutes at room temperature. After this rest, perform another set of three stretch-and-folds, again rotating the bowl between each fold. This helps build structure while allowing the dough to relax between manipulations.

Place the dough in the refrigerator for bulk fermentation, where it will develop flavor and rise slowly. I recommend fermenting overnight for 12-16 hours, but no longer than 24 hours. The cold slows yeast activity, allowing for better flavor development. You'll know it's ready when the dough has doubled in size and springs back slowly when poked with a finger.

Lightly dust a clean work surface with 1 tbsp semolina flour. Turn the cold dough onto the surface and gently shape it into a tight round boule by pulling the edges toward the center. For a more rustic look, you can shape it into a batard by forming it into an oval.

Place the shaped dough seam-side up in a floured proofing basket or a bowl lined with a floured kitchen towel. Cover and let it proof at room temperature for 1-2 hours until it has risen about 50% above its original height. The dough should feel slightly domed and spring back slowly when pressed gently.

Preheat your oven to 450°F with a Dutch oven inside for at least 45 minutes. Turn the dough onto a piece of parchment paper and score the top with a sharp razor or lame by making a deep, diagonal cut about ½ inch long. This allows the dough to expand properly during baking.

Carefully transfer the dough and parchment into the hot Dutch oven. Bake covered for 20 minutes, then remove the lid and bake uncovered for another 20-25 minutes until the crust is deep golden brown and the internal temperature reaches 205-210°F. The bread should sound hollow when tapped on the bottom.

Remove the bread from the Dutch oven and transfer it to a wire rack to cool completely. This cooling process, which should take at least 1 hour, allows the bread to set properly and prevents a gummy interior. The bread will continue to develop flavor as it cools.

Once fully cooled, slice the bread and enjoy it at its peak. The autolyse method creates a lighter, more open crumb with enhanced flavor development, making each slice worth the effort. Store any leftovers in an airtight container at room temperature for up to 3 days or freeze for longer storage.

Storing and reheating this 900g sourdough bread

Room-Temp Storage

Wrap your freshly baked 900g sourdough loaf in a clean towel-lined cotton bag (like a muslin bag) to maintain moisture and prevent drying. Store at room temperature (around 70°F) for up to 3 days—this is ideal for preserving that just-baked flavor and texture.

I avoid plastic bags because they trap moisture and can make the crust soggy. Place the wrapped loaf on a wire rack to allow airflow around the bottom. 🌾

Refrigerator Revival

If you need to extend freshness beyond 3 days, transfer the wrapped loaf to the refrigerator where it’ll keep for 5-7 days. To revive stale bread, preheat your oven to 350°F, wrap the cold loaf in aluminum foil, and bake for 10-15 minutes until warmed through.

The foil traps steam, restoring moisture and crispness. For extra crunch, finish with 5 minutes uncovered. ✨

Freezer Preservation

Slice the loaf before freezing for best texture—wrap individual slices in parchment paper and store in a freezer bag for up to 3 months. Thaw at room temperature for 1-2 hours before toasting.

For whole loaves, freeze the unwrapped loaf on a tray for 1 hour to create an air barrier, then wrap tightly in plastic wrap followed by a towel. This prevents freezer burn and preserves the crust’s integrity. ❄️

Reheating Techniques

For stovetop revival, place slices in a dry skillet over medium heat for 1-2 minutes per side until golden. For oven reheating, spread slices on a baking sheet and bake at 375°F for 5-7 minutes until crisp.

Avoid microwaving—it turns bread gummy. If your loaf feels dry after reheating, brush with a little water and reheat briefly to restore moisture. 🔥

Crust Maintenance

The crust is the soul of sourdough—protect it! Store loaves cut-side down to prevent the crust from drying out. For extra crispiness, sprinkle a pinch of semolina flour on the cut surface before storing.

If the crust softens, reheat the entire loaf at 350°F for 5 minutes to restore its snap. The autolyse method actually makes the crust more resilient, so you’ll notice less drying over time. 💪

Frequently asked questions