Artisan Sourdough Bread Recipe King Arthur: Crusty Crown With Open Crumb Magic

This artisan sourdough bread recipe using King Arthur Flour delivers the perfect balance of a crusty crown and an open, airy crumb—just like your favorite bakery loaf. The secret lies in patient fermentation and precise technique, transforming simple ingredients into restaurant-quality bread at home.

I’ve refined this recipe over years of baking, ensuring every loaf rises to expectations with minimal fuss.

What sets this recipe apart is the autolyse method, which develops gluten gradually for a tender crumb, followed by bulk fermentation that builds deep flavor. King Arthur Flour’s high protein content guarantees a sturdy structure, while proper scoring creates that coveted oven spring.

No more dense, gummy loaves—just crispy, golden crusts with a satisfying crunch and a soft, chewy interior.

The process may seem involved, but breaking it into manageable steps makes it accessible. From cultivating your starter to shaping and baking, each phase builds toward that perfect loaf. With 24 hours of hands-off fermentation, you’ll have time to focus on other tasks while the dough does the work.

The result? A loaf so good, you’ll never buy store-bought again.

Whether you’re a beginner or an experienced baker, this recipe adapts to your schedule. Use it for sandwiches, toast, or simply enjoy it fresh from the oven. The key is patience—let the dough work its magic, and you’ll be rewarded with a loaf that’s worth every minute of wait.

Let’s get started on your first perfect batch.

Ingredients for artisan sourdough bread recipe king arthur

Four key ingredients transform simple flour into bakery-quality sourdough magic—King Arthur flour's protein and your starter's wild yeast are the stars here.

King Arthur Bread Flour is non-negotiable here—its 22% protein content builds the sturdy structure you crave, while the low ash keeps flavors clean. Grab the 5-pound bag from their website or local baking stores like Sur La Table or Whole Foods bulk section. Your sourdough starter? 100% hydration is ideal—if it's sluggish, feed it 24 hours ahead with equal parts flour and water. For vinegar, Bragg's unfiltered adds depth without overpowering. Pro tip: Weigh your flour for precision—King Arthur's scoop method gives 4 cups per pound, but digital scales are worth the investment for repeatability. The olive oil should be extra-virgin—look for California or Italian brands at Trader Joe's or Costco for the best balance of flavor and price.

No King Arthur flour? Caputo Tipo 00 (for Italian bread) or Breadworks High Gluten are solid backups—just add 1 tsp vital wheat gluten per cup of flour. Starter too weak? Boost with 1 tsp sugar or honey during feeding. For salt, Diamond Crystal dissolves faster than Morton's—essential for proper fermentation. Olive oil substitutes? Avocado oil works but lacks the fruity notes; vegetable oil is neutral but can make crusts too soft. The cornmeal is just for scoring—white or yellow both work, but stone-ground adds rustic texture. Honey lovers can swap for maple syrup or skip entirely; the crust will just lack that golden sheen. Remember: room temperature ingredients are critical—cold flour kills yeast, and warm water can overproof your dough.

Store your starter in a clean glass jar with a loose lid—ferment at 75-78°F for best activity. King Arthur flour keeps indefinitely in a cool, dark place; once opened, transfer to an airtight container for freshness. The dough can be shaped 24 hours ahead and refrigerated—pull it out 2 hours before baking for perfect oven spring. For scoring, use a razor blade or lame at a 45-degree angle—practice on scrap dough first! Baked loaves stay fresh 3 days at room temperature wrapped in a towel-lined bag, or freeze sliced for 3 months. The crust? Best within 2 days—after that, toast it to revive texture. Pro move: Label your freezer portions with dates so you never waste a perfect slice.

Step-by-step instructions for artisan sourdough bread with King Arthur flour

Here's how to transform simple ingredients into a golden-crusted loaf with an open, airy crumb.

In a large mixing bowl, combine the 5 cups King Arthur Bread Flour with the 3.5 cups Cold Filtered Water. Use your hands or a dough whisk to break up any flour clumps until you have a shaggy, sticky mass. This initial mix, called an autolyse, allows the gluten to begin developing while we prepare the rest of our ingredients.

Cover the bowl with a damp kitchen towel and let it rest at room temperature for 30 minutes. You'll notice the dough becomes smoother and more elastic as the gluten strands form. This step is crucial—it creates the perfect foundation for our open crumb structure. Real talk: skipping this makes the dough harder to handle later.

After the autolyse, add the 1.5 cups Active Sourdough Starter, 2 tsp Diamond Crystal Kosher Salt, and 0.5 cup Extra-Virgin Olive Oil to the bowl. Using a dough scraper or your hands, gradually incorporate these ingredients by folding the dough over itself 4-5 times. The dough will become more cohesive and elastic as you work.

Continue folding the dough for 5-8 minutes until it develops a smooth, slightly tacky surface. You're looking for what bakers call "windowpane" when you stretch a small piece—it should thin enough to see light through without tearing. This indicates proper gluten development. If the dough feels too sticky, add 1 tablespoon of the cold filtered water at a time until it's manageable.

Shape the dough into a loose ball and place it back in the bowl. Cover with the damp towel and let it ferment at room temperature for 4-6 hours, or until it has roughly doubled in size. I like to check periodically—look for about 50% increase in volume and bubbles forming on the surface.

During the last 30 minutes of bulk fermentation, sprinkle 1 tsp Diatomaceous Earth over the dough (if using). This optional step adds structure and helps with oven spring. The dough should feel noticeably lighter and airier when ready. If your kitchen is warm, you might need to reduce fermentation time to prevent overproofing—this is when the dough collapses instead of rising properly.

Lightly dust a clean work surface with 0.25 cup Cornmeal (this prevents sticking and gives a nice texture). Turn out the dough and gently shape it into a loose round by folding the edges toward the center. Cover and let it rest for 20-30 minutes—this bench rest relaxes the gluten after handling.

After resting, shape the dough into a tight boule (round loaf) by tucking the edges under and sealing the seam. Place it seam-side up on a parchment-lined baking sheet, cover with a damp towel, and refrigerate for 12-16 hours. The cold slows fermentation and develops complex flavors. This is where the magic happens—your kitchen will smell like fresh-baked bread by morning!

Preheat your oven to 450°F with a Dutch oven inside for 45 minutes. Remove the Dutch oven and brush the dough with 1 tsp Honey (if using) for that beautiful sheen. Using a sharp razor or lame, score the dough in a ½-inch deep crosshatch pattern—this controls expansion and creates those gorgeous crusty ridges.

Carefully transfer the dough to the hot Dutch oven, cover, and bake for 30 minutes. Then remove the lid and bake for another 15-20 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. Let it cool on a wire rack for at least 1 hour before slicing—this prevents a gummy crumb.

Make-ahead tips for this recipe

Starter Prep Ahead

Your sourdough starter is the foundation—prepare it 24-48 hours before baking day. Feed it 1:1:1 ratio (flour:water:starter) at 75-78°F for maximum activity. Store it in a glass jar with a loose lid on your countertop.

Look for doubling in 4-6 hours before using—this means it's ready. Honestly, I keep mine in a dedicated jar on my kitchen shelf so it's always ready for baking adventures. 🍞

Dough Prep Timeline

Shape your dough 12-16 hours before baking and refrigerate it. The cold slows fermentation, creating deeper flavors. I like to set my oven timer for baking while I'm still asleep—waking up to that aroma is pure magic.

Label your dough with the date so you don't forget it's there. This method gives you flexible baking windows without rushing.

Freezing Dough

Need to delay baking? Shape your dough, wrap it tightly in plastic wrap, then place in a freezer bag for up to 3 months. When ready to bake, thaw in the fridge overnight, then proceed with scoring and baking as usual.

The cold rise will be slower, but you'll still get that perfect open crumb. I've used this trick when hosting dinner parties—just pull it out in the morning and bake before guests arrive. ❄️

Baked Loaf Storage

Fresh bread stays best 3 days at room temperature wrapped in a towel-lined bag to maintain moisture. For longer storage, slice and freeze portions in airtight containers for up to 3 months.

Toast frozen slices directly from the freezer—they'll be crispy outside and soft inside. Pro tip: Label your freezer portions so you remember which loaf is which!

Reviving Stale Bread

Even "stale" sourdough can be revived! Wrap slices in aluminum foil and warm at 350°F for 5-10 minutes until crispy. Or, make croûtons by cutting into cubes, tossing with olive oil, and baking at 375°F for 10-15 minutes.

I often use day-old slices for French toast or bread pudding—waste not, want not! 🔥

Batch Baking Tips

Make two loaves at once using the same dough—just divide it evenly before final shaping. Double your starter feeding the day before, and use two Dutch ovens in your oven. This cuts prep time in half while doubling your yield.

Perfect for meal prep or sharing with neighbors! I've baked four loaves in my oven by using a combination of Dutch ovens and baking sheets—just rotate pans halfway through. 💪

Frequently asked questions