This 1kg sourdough bread recipe delivers restaurant-quality crust with that signature tangy depth—all in just 24 hours. The secret lies in precise fermentation times and a high hydration ratio that creates an open crumb structure and crispy golden crust. I’ve perfected this method after years of baking, ensuring even home bakers achieve professional results without special equipment.
The process begins with a 24-hour cold fermentation that develops complex flavors while keeping the dough manageable. We’ll use a 75% hydration ratio (750g flour to 562g water) for a lighter, airier loaf with excellent oven spring. The dough gets a 4-hour bulk fermentation followed by a 2-hour final proof, allowing time for proper gluten development and flavor maturation.
What you’ll end up with is a 1kg sourdough loaf with a crackly crust, open crumb, and that unmistakable tangy aroma. The bread stays fresh for days when properly stored, making it perfect for sandwiches, toast, or serving alongside soups. This method balances tradition with modern convenience, delivering authentic results without the complexity.
Whether you’re a seasoned baker or new to sourdough, this recipe breaks down each critical step—from starter maintenance to shaping and baking. The key is patience and attention to detail during fermentation, which transforms simple ingredients into something extraordinary. Let’s get started with the ingredients and instructions.
Ingredients for 1kg sourdough bread
Eight essential ingredients transform into a 1kg sourdough masterpiece with professional crust and tangy depth.
| Ingredient | Amount | Notes |
|---|---|---|
| Unbleached Bread Flour 🌾 | 3.4 cups | High-protein for structure |
| Active Sourdough Starter 🍞 | ½ cup | 100% hydration, bubbly |
| Filtered Water 💧 | 2.8 cups | Room temperature preferred |
| Kosher Salt 🧂 | ¾ tsp | Diamond Crystal preferred |
| Honey 🍯 | ¼ tsp | Raw preferred for flavor |
| Extra-Virgin Olive Oil 🫒 | ¼ tsp | For dough handling |
| Cornmeal 🌽 | ¼ cup | For dusting parchment |
| Ice Water ❄️ | ½ cup | For final shaping |
The bread flour is non-negotiable here—its high protein content (12-14%) creates the perfect gluten structure for that signature open crumb. King Arthur or Caputo are my go-to brands for consistent results. Your sourdough starter should be active with at least 20% bubbles by volume (test by poking it—it should spring back slowly). For the water, filtered is best to avoid flavor interference, but tap water works in a pinch if you’re new to baking. The honey isn’t just for sweetness—it helps regulate fermentation slightly, so don’t skip it even if you’re not making sweet bread. I always keep a small jar of raw Manuka honey on hand for baking because it adds subtle depth.
No sourdough starter? King Arthur’s sourdough mix can jumpstart your process, though it won’t develop the same complexity. Running short on honey? Maple syrup at half the amount works, but expect slightly different fermentation dynamics. The olive oil is purely functional here—just enough to prevent sticking during handling. If you’re making multiple loaves, invest in a small spray bottle for light oil misting instead of rubbing oil directly on the dough. For the cornmeal, fine-ground white cornmeal works best for dusting—it’s less likely to clump than the coarser yellow variety. And that ice water? It’s your secret weapon for tightening the dough’s surface tension during final shaping, giving you that perfect tension for oven spring.
Store your active starter in a clean glass jar with a loose lid in the fridge—it’ll last 2-3 weeks this way. The dough can be refrigerated for up to 24 hours before baking if you need to adjust your schedule, though it’ll develop more flavor if baked immediately. Once baked, let the loaf cool completely on a wire rack (at least 2 hours) to prevent condensation from turning the crust soggy. For maximum freshness, slice and freeze portions—3 months in an airtight bag with a paper towel to absorb moisture. The crust stays crispy for days when properly stored in a bread box or paper bag.
Why You’ll Love This Recipe
- Four-Hour Freedom: I swear, this dough comes together faster than my coffee cools. Just toss in the flour, starter, water, and a pinch of salt—no kneading, no fuss—then let it do its magic while I handle the rest of my day. That honey touch? Pure genius for cutting through the tang later.
- Tangy-Sweet Crust: The crust crackles like autumn leaves, but it’s the inside that steals the show—chewy, open crumb with that honeyed warmth cutting through the sourdough’s natural tang. Honestly, I’ve tried store-bought loaves that can’t compete with this simple combo of flour, starter, and a drizzle of honey.
- Weeknight Workhorse: This loaf is my go-to for sandwiches, toast, or even French toast—no one questions why I’m eating bread for breakfast. It keeps well for days (yes, even on a Tuesday night), so I bake one batch and forget it until it’s gone.
- Pantry Goldmine: A single batch costs pennies compared to buying bread, and it’s the ultimate sidekick for soups, charcuterie, or just slathering butter on it. Between us, I’ve fed a crowd with half a loaf and still had leftovers for my lunchbox. That’s reliability.
Step-by-step instructions for 1kg sourdough bread
Mastering this method delivers a crisp artisan crust and tangy interior with precise timing and technique.
Mix Dough with Autolyse for Optimal Development
In a large mixing bowl, combine the 3.38 cups unbleached bread flour with the 2.81 cups filtered water. Use your hands or a dough whisk to break up any dry flour pockets until a shaggy dough forms. This initial mix, called autolyse, allows the flour to fully hydrate and develop gluten before adding other ingredients.
Cover the bowl with a damp kitchen towel and let rest for 30 minutes. You’ll notice the dough become smoother and more cohesive as the gluten begins to relax. This resting period is crucial for creating an open crumb structure in your final loaf. Avoid kneading during this time—it’s about resting, not working the dough.
Incorporate Starter, Salt, and Fat for Flavor and Texture
After the autolyse, add the 0.5 cup active sourdough starter, 0.75 tsp kosher salt, 0.25 tsp honey, and 0.25 tsp extra-virgin olive oil to the bowl. Using a dough scraper or your hands, gently fold these ingredients into the dough until fully incorporated. The dough will appear shaggy again but more cohesive than before.
Now perform a series of stretch-and-folds: wet your hands, grab one side of the dough, stretch it upward, and fold it over itself. Rotate the bowl and repeat this process 4-5 times. This builds gluten without overworking the dough. The dough should become smoother and more elastic after these folds, with visible tension when gently pulled.
Bulk Fermentation with Controlled Conditions
Shape the dough into a loose ball, place it back in the bowl, and cover with the damp towel. Let it ferment at room temperature (70-72°F) for 4-5 hours, performing two more sets of stretch-and-folds at 1-hour intervals. You’re looking for about 50-75% volume increase—the dough should look puffy and jiggly when gently shaken.
During this time, the dough will develop bubbles and a slightly sour aroma from the active starter. The ideal dough temperature at the end of bulk fermentation should be between 76-78°F. If your kitchen is cooler, you may need to extend fermentation by 1-2 hours. Patience here ensures proper flavor development and oven spring.
Pre-Shape, Cold Proof, and Final Shape
Turn the dough onto a lightly floured surface and perform a pre-shape by gently rounding it into a ball. Cover with plastic wrap and refrigerate for 12-16 hours. This cold proof slows fermentation while allowing flavors to develop and gluten to relax. The dough will rise slightly but won’t double in size.
After cold proofing, turn the dough onto a lightly floured surface and perform the final shape. For a boules shape, create surface tension by pulling the dough toward you in a circular motion, then cup your hands to form a taut ball. Seal the seams by pressing gently with your fingertips. The dough should feel smooth and resilient with good tension.
Score and Bake for Maximum Crust Development
Preheat your oven to 450°F with a Dutch oven inside for 45 minutes. Line a baking sheet with parchment paper and dust generously with 0.25 cup cornmeal. Turn the shaped dough onto the parchment, seam-side up, and score the top with a razor blade at a 45-degree angle using a single, confident motion.
Carefully transfer the dough (with parchment) into the hot Dutch oven. Bake covered for 20 minutes, then remove the lid and bake for an additional 20-25 minutes until the crust reaches a deep golden brown. The internal temperature should reach 190-195°F. You’ll hear a hollow sound when tapping the bottom of the loaf, indicating proper doneness.
Pro Tips For Making 1kg Sourdough Bread
- STRETCH AND FOLD: Use a bench scraper to fold your dough—it’s faster than hands and gives you cleaner, tighter gluten strands. I learned this after watching my dough turn into a gluey mess from overworking it with my fingers.
- WEIGH YOUR STARTER: Measure your active sourdough starter by weight, not volume—100g starter isn’t the same as 100g of flour. After years of guessing, I finally bought a cheap scale, and my bake times became consistent.
- SALT THE WATER: Dissolve the kosher salt in the filtered water before mixing it with flour—it distributes evenly and prevents clumpy dough. I used to add it later, and my bread always tasted unevenly seasoned.
- HONEY IN THE LAST MIX: Add the honey during the final mix, not the autolyse—it feeds the yeast more effectively and gives a subtle sweetness without overpowering. I was skeptical until I tried it, and the crust got a nicer sheen.
Essential equipment for great 1kg sourdough bread
Dutch Oven Essentials
Your Dutch oven is the single most important tool for this recipe, creating that iconic steam environment for oven spring. I recommend a 5-6 quart enameled cast iron Dutch oven—Le Creuset or Lodge are my top picks for even heat distribution. The lid should fit snugly to trap steam during the first 20 minutes of baking. If you don’t own one, a heavy oven-safe pot with a tight lid works in a pinch, though results may vary slightly. 🔥
Digital Thermometer
Invest in a laser or probe thermometer like the ThermoWorks Thermapen to monitor both oven and dough temperatures. The dough should reach 76-78°F at the end of bulk fermentation, and your oven should hold 450°F consistently. I’ve seen home ovens fluctuate by 25°F or more—this tool prevents under- or over-baking. Place the probe in the center of the loaf to check internal temperature at 190-195°F.
Bread Scoring Tools
A sharp razor blade or lamé is essential for scoring your dough before baking. I use a Japanese pull knife (like Kai) for its precision—it cuts cleanly through the dough’s surface tension. The 45-degree angle creates an even release for oven spring. Never use a dull knife; it will tear the dough instead of making a clean cut. Practice on scrap dough first to get comfortable with the pressure needed.
Dough Scraper and Bowl
Your dough scraper should be made of stainless steel (like Oxo Good Grips) for durability and easy cleanup. Pair it with a large mixing bowl (at least 8-quart capacity) to accommodate the dough’s expansion. I prefer glass or stainless steel bowls—they’re easier to clean than plastic and maintain consistent dough temperatures. A damp kitchen towel draped over the bowl during fermentation prevents drying while allowing the dough to breathe.
Proofing Tools
For cold proofing, a plastic wrap or proofing box (like Proof Box by Proof Baker) maintains consistent humidity. If you don’t have one, I’ve had success with a large ziplock bag placed in the fridge—just poke a few holes for airflow. A baking stone or steel (like April Baking Co.) on the oven rack improves heat transfer during baking, though it’s not mandatory. For scoring practice, keep a small bowl of water nearby to dampen your fingers between cuts.
Optional Extras
Upgrade your setup with a dough whisk (like KitchenAid) for mixing and a scale (like Escali) for precise measurements. I also keep parchment paper and cornmeal on hand for easy transfer and scoring. For storage, a bread box or cotton towel-lined basket keeps the crust crispy for days. The right tools make all the difference—especially when you’re perfecting that 1kg sourdough loaf with professional results. ✨
Nutrition facts
Frequently asked questions about 1kg sourdough bread
Can I make this recipe without a Dutch oven?
Yes, but results will differ slightly. Use a heavy oven-safe pot with a tight lid or place a baking tray on the lower rack while baking. Add 1 cup boiling water to the tray during the first 20 minutes to create steam. The crust won’t be as crispy, but you’ll still get a good oven spring. For best results, try a commercial baking steel on the oven rack instead.
Why does my dough smell so sour?
The strong sour aroma comes from active fermentation—it’s normal! A properly fermented dough should smell tangy with notes of lactic acid (like yogurt or vinegar). If it smells like rotten eggs or ammonia, your starter may be overfed or contaminated. For milder flavor, reduce fermentation time by 1 hour or use less starter (0.4 cup instead of 0.5 cup).
How do I know when the dough is fully proofed?
Look for 50-75% volume increase and these visual cues: the dough should have visible bubbles on the surface, jiggle slightly when gently shaken, and feel springy when poked (it should leave a slow indentation). The edges should pull away from the bowl slightly. If your kitchen is cool (68°F), fermentation may take 6-7 hours total instead of 4-5 hours.
Can I add seeds or nuts to this recipe?
For 1kg sourdough, add 2-3 tablespoons of seeds (sesame, flax, pumpkin) or 1/4 cup chopped nuts (walnuts, pecans) during the final stretch-and-folds. Soak seeds/nuts in water for 10 minutes first to prevent stealing moisture from the dough. Toast them lightly before adding for extra flavor. Avoid adding more than 5% of the total weight to maintain proper structure.
What if my bread doesn’t rise in the oven?
Check these common issues: was your oven properly preheated? Did you score the dough before baking? If the dough didn’t rise enough during bulk fermentation, try increasing room temperature by placing the bowl near a warm spot (like a sunny window). For future batches, extend bulk fermentation by 1 hour or increase starter to 0.6 cup. A dull blade can also prevent proper oven spring—always use a sharp razor.
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