Anna Olson's Sourdough Bread Recipe: Foolproof No-Knead Rise for Artisan Crust

Ingredients for anna olson sourdough bread

Four cups flour, one cup lively starter, and precise hydration create Anna's legendary artisan crust.

The flour is non-negotiable—unbleached all-purpose yields the perfect balance of structure and tenderness. King Arthur or Bob's Red Mill are ideal choices, as their protein content (10-12%) creates that signature open crumb. Your sourdough starter must be active (bubbly when dropped in water) and at 100% hydration for optimal fermentation. Test it by poking with a toothpick—it should spring back slowly. The warm water (95°F) ensures proper gluten development without shocking the starter, while Diamond Crystal kosher salt dissolves completely for even flavor distribution. For the olive oil, California Avocado's extra-virgin adds subtle fruitiness that enhances the crust's depth.

No sourdough starter? King Arthur's sourdough mix provides a reliable alternative, though results will differ slightly. Running short on flour? Whole wheat flour at 20% replacement adds nutrition but may slightly reduce oven spring. The ice water is critical for final dough adjustment—use it only if the dough feels too sticky after bulk fermentation. For scoring, a lame tool creates clean cuts, but a sharp razor blade works in a pinch. Prefer a different flour blend? White whole wheat at 10% inclusion maintains lightness while adding subtle sweetness. Always sift your flour before measuring to prevent dense crumb.

Store your active starter in the fridge between uses, feeding weekly with equal parts flour and water. The dough rises best at 70-75°F for 12-18 hours, so use an insulated cooler if your kitchen runs warm. Once baked, loaves maintain freshness for 3 days at room temperature when wrapped in a clean towel. For longer storage, freeze fully cooled loaves for up to 3 months—thaw at room temperature before toasting. The semolina dusting prevents sticking and adds that coveted golden crust. Always preheat your Dutch oven with the lid on for 45 minutes at 475°F to create optimal steam conditions.

Step-by-step instructions for Anna Olson's sourdough bread

Mastering this technique delivers a crust with professional artistry and an open crumb structure every time.

In a large mixing bowl, combine the 4 cups unbleached all-purpose flour and 1 cup active sourdough starter. The starter should be bubbly and active—if it's sluggish, feed it 24 hours before using. Create a well in the center and add the 2.5 cups warm water (95°F) and 1.5 tsp kosher salt. The water temperature is critical; too hot will kill the yeast, too cold won't activate properly.

Using a wooden spoon or dough whisk, gently stir the ingredients until just combined. You'll see a shaggy mass form, but don't be tempted to mix vigorously. The goal is to hydrate the flour without developing gluten prematurely. Add the 1 tbsp extra-virgin olive oil and mix until fully incorporated. The dough should look sticky and wet—this is normal for a high-hydration sourdough.

Cover the bowl with a damp kitchen towel or plastic wrap and let the dough rest at room temperature for 30 minutes. This initial rest allows the flour to fully hydrate and the gluten to begin developing naturally. I like to place the bowl in a slightly warm spot—around 75°F—to encourage activity without overheating.

After resting, the dough should be more cohesive and slightly less sticky. If it's still too wet, add 1-2 tablespoons of the 4 cups unbleached all-purpose flour to adjust consistency. This is where the magic happens—the gluten strands will start forming, giving your bread its signature open crumb structure. Don't rush this step; patience here prevents dense bread later.

Lightly dust a clean work surface with 1 tbsp semolina flour and turn out the dough. Gently shape it into a loose round by folding the edges toward the center, creating surface tension. This shaping technique helps develop gluten without overworking the dough. Place the shaped dough back in the bowl, cover, and let it rest for another 30 minutes at room temperature.

After this second rest, the dough should be more elastic and easier to handle. Dust a piece of parchment paper with 0.25 cup cornmeal and transfer the dough to it. The cornmeal creates a barrier that prevents sticking during the final proof. Cover loosely with plastic wrap and refrigerate for 12-18 hours (overnight works best). This cold fermentation slows yeast activity, allowing for better flavor development and easier scoring later.

Preheat your oven to 450°F with a Dutch oven inside for 45 minutes. Remove the Dutch oven and transfer the dough (still on parchment) to it. Using a lame or razor blade, score the dough deeply in a decorative pattern—this controls expansion and creates that coveted artisan crust. The blade should cut through to the base of the dough.

Carefully transfer the Dutch oven back to the oven and bake for 30 minutes with the lid on. Then remove the lid and bake for another 15-20 minutes until the crust is deep golden brown with dark spots. The internal temperature should reach 205-210°F when measured at the center. Tap the bottom of the loaf—it should sound hollow, indicating proper doneness.

Remove the bread from the Dutch oven and let it cool on a wire rack for at least 1 hour before slicing. This resting period allows the steam to escape and the gluten to relax, preventing a gummy crumb. The crust should be crisp and shatterable, while the interior reveals an open, airy crumb structure with visible holes.

For best results, serve the bread within 2-3 days when it's at its peak. Store leftovers wrapped in a clean kitchen towel at room temperature to maintain freshness. This method consistently delivers professional-quality sourdough with minimal effort—once you've mastered the timing and technique, it becomes second nature.

Essential equipment for anna olson sourdough bread

Dutch Oven Essentials

Your Dutch oven is the workhorse of this recipe—it creates the steam environment needed for that signature oven spring and crispy crust. I recommend a 5-quart enameled cast iron like the Le Creuset Signature or Lodge Pre-Seasoned Dutch Oven.

The 5-quart size accommodates a standard loaf while allowing room for steam circulation. Preheat it with the lid on for 45 minutes at 475°F to establish proper steam conditions before baking. 🔥

Precision Tools

A lame tool (or sharp razor blade) is non-negotiable for scoring—it creates clean cuts that direct the dough’s expansion. The Utopia Kitchen Lame is my top pick for its ergonomic handle and razor-sharp blade.

For measuring, a digital kitchen scale ensures accuracy, especially with the high-hydration dough (75%). The OXO Good Grips Scale is a budget-friendly favorite that handles up to 11 lbs.

Flour and Hydration

The right flour makes all the difference. King Arthur Unbleached All-Purpose Flour or Bob’s Red Mill are ideal—their 10-12% protein content balances structure and tenderness. For hydration, a thermometer (like the Thermoworks Thermapen) ensures your warm water stays at 95°F, preventing yeast shock.

A large mixing bowl (at least 5-quart capacity) accommodates the sticky dough without spills.

Proofing and Storage

An insulated proofing box (like the Proof Box by Proof Baking) maintains 70-75°F for consistent rises, especially in cold kitchens. For cold fermentation, a refrigerator works perfectly—just place the dough in a sealed container.

A wire cooling rack (like the OXO Good Grips) prevents soggy bottoms while cooling. For scoring, semolina flour (not all-purpose) creates the crispy crust—Barilla Semolina is my go-to brand.

Budget-Friendly Swaps

No Dutch oven? A heavy oven-safe pot with a tight-fitting lid (like a Vitamix pot) works in a pinch. Skip the lame? A sharp chef’s knife with a ceramic blade (like Mercer Culinary) cuts cleanly.

For scaling, a measuring cup set (like Pyrex Precision) is accurate for flour and water. A damp towel replaces a proofing box—just place the dough in a sealed container with the towel inside.

Frequently asked questions