Side Dishes
This 8-hour sourdough sandwich bread delivers the perfect balance of crispy crust and tender crumb—ideal for buttery toast, hearty sandwiches, or fresh-baked sliders. The key lies in a slow fermentation that develops deep flavor while maintaining an open crumb structure perfect for sandwiches.
I've refined this recipe over years of baking, ensuring every loaf turns out with that signature crack and pillowy interior.
Unlike quick breads, this method requires patience—8 hours of active fermentation—but the results are worth it. We'll use a simple starter, high-hydration dough, and a Dutch oven for that iconic oven spring.
The process might seem long, but it's designed to work alongside your schedule, with most of the heavy lifting done while you sleep or go about your day.
What you'll end up with is crusty on the outside, soft and airy inside, with an open crumb that's perfect for holding fillings without falling apart. The flavor develops rich, tangy notes from the sourdough fermentation, making every slice taste like it came from an artisanal bakery.
This bread freezes beautifully too, so you can bake a batch and enjoy it for weeks.
The beauty of this recipe is its versatility—use it for classic grilled cheese, French toast, or even as a base for open-faced sandwiches. Once you master this 8-hour sourdough sandwich bread, you'll never buy store-bought again. Let's get started on creating your perfect loaf.
Ingredients for 8 hour sourdough sandwich bread
Nine simple ingredients transform into the perfect sandwich bread with that iconic crack and pillowy crumb.
| Ingredient | Amount | Notes |
|---|---|---|
| Active Sourdough Starter 🍞 | ½ cup | 100% hydration, bubbly and active |
| All-Purpose Flour 🌾 | 3 ½ cups | King Arthur or similar |
| Bread Flour 🌾 | ½ cup | For better gluten structure |
| Water 💧 | 1 ¾ cups | Lukewarm, 80°F |
| Granulated Sugar 🍚 | ½ tsp | Feeds starter |
| Salt 🧂 | 1 ½ tsp | Diamond Crystal preferred |
| Cornmeal 🌽 | ¼ cup | For dusting Dutch oven |
| Ice Water ❄️ | ½ cup | For final shaping |
| Olive Oil 🫒 | 1 tbsp | For greasing bowl |
The sourdough starter is the heart of this recipe—it needs to be 100% hydration and actively bubbling. If you're new to starters, King Arthur's sourdough starter is foolproof for beginners. For the flours, I always mix all-purpose with bread flour—the bread flour gives that signature open crumb, while the all-purpose keeps it tender. Water temperature matters too: too hot kills the yeast, too cold slows fermentation. Aim for 80°F—that's lukewarm, not boiling. The sugar and salt? Standard amounts, but don't skip the Diamond Crystal salt—it dissolves better than table salt.
No sourdough starter? Store-bought pizza dough works in a pinch—just add 1 tbsp vinegar and 1 tsp sugar to mimic the tang. Running low on bread flour? All-purpose works fine, though the crumb won't be quite as open. The cornmeal is non-negotiable for that crispy bottom crust—Bob's Red Mill is my go-to brand. For the ice water, grab a thermos with ice cubes for easy chilling. And if you're worried about the 8-hour timeline, don't be: the dough can hang out in the fridge overnight, and the oven does most of the work while you sleep.
This bread keeps for 3-4 days at room temperature wrapped in a towel, but it's best eaten fresh. For longer storage, freeze the loaf unwrapped for 1 week or wrapped for 3 months. To reheat, wrap in foil and warm at 350°F for 10 minutes. Pro tip: slice it before freezing—toasted straight from frozen is my favorite way to enjoy it. And if you bake a batch, trust me: you'll want to make this every week.
Why You'll Love This Recipe
- No-Knead Magic: I mix, shape, and forget—literally. The dough gets all the time it needs while I do my thing, then bakes up with that perfect open crumb and crust. Honestly, the only "work" is folding it once, and even my toddler could do that.
- Tangy Crunch Perfection: That sourdough starter? It’s the secret weapon—slightly sour, just sweet enough from the granulated sugar, and the bread flour gives it this chewy bite. Toast it, and the crust gets this irresistible crunch that makes sandwiches feel like a treat, not just lunch.
- Weeknight Workhorse: I make a loaf on Sunday, and it lasts me until Thursday. Freezes beautifully too—just thaw and toast. Whether it’s grilled cheese, PB&J, or a charcuterie board, this bread handles it all without falling apart.
- Budget-Friendly Staple: Flour and water are cheap, and a little starter goes a long way. I’ve made this for $2 a loaf, and it outshines store-bought every time. Plus, the leftovers? They’re the reason I don’t stress about grocery runs.
Step-by-step instructions for perfect sourdough sandwich bread
Here's the method that delivers that perfect sandwich bread texture—crispy crust and soft, airy crumb every time.
Mix the Dough with Precision
In a large mixing bowl, combine the 0.5 cup Active Sourdough Starter, 3.5 cups All-Purpose Flour, 0.5 cup Bread Flour, 1.75 cups Water (lukewarm), 0.5 tsp Granulated Sugar, and 1.5 tsp Salt. I use a wooden spoon first to break up any flour clumps and distribute the starter evenly throughout the dry ingredients.
Once everything is incorporated, switch to your hands and knead for 5-7 minutes until the dough becomes smooth and elastic. You'll know it's ready when it springs back slowly when poked. This dough is slightly stickier than commercial bread dough because of the higher hydration from the active starter—don't be tempted to add extra flour. The stickiness helps create that perfect open crumb structure we want in sandwich bread.
Bulk Ferment for Maximum Flavor
Lightly oil a large bowl with 1 tbsp Olive Oil, place the dough inside, and cover with a damp kitchen towel. Let it ferment at room temperature for 4 hours. You'll see the dough nearly double in size and develop small bubbles on the surface—this is when all the magic happens.
After 2 hours, give the dough a gentle stretch and fold to strengthen the gluten structure. This step develops the bread's oven spring and creates those beautiful air pockets. I like to do this by wet hands, grabbing one side of the dough, stretching it upward, and folding it over itself. Repeat this process 2-3 times during the bulk fermentation for best results. The dough should feel slightly resistant but still soft to the touch.
Shape and Cold Proof for Crusty Perfection
After the bulk fermentation, transfer the dough to a lightly floured surface and shape it into a tight rectangle about 10x6 inches. This sandwich shape is perfect for those thick slices. Fold the edges toward the center and seal tightly—this creates the classic sandwich bread shape with a crispy crust and soft interior.
Place the shaped dough seam-side up in a bowl, cover, and refrigerate for 12-16 hours. This cold proofing is crucial—it allows the gluten to relax and the flavors to develop fully. The dough will rise slowly in the fridge, and you'll notice it's puffier and more aromatic when you take it out. This is when the sourdough flavors really come alive, giving you that authentic tang in every bite.
Bake with Steam for Ultimate Texture
Preheat your oven to 425°F with a Dutch oven inside for 45 minutes. Remove the hot Dutch oven and dust the bottom with 0.25 cup Cornmeal. Carefully transfer the dough (still on its proofing cloth) into the hot Dutch oven. Sprinkle the top with a little more cornmeal and cover tightly with the lid.
Bake for 30 minutes covered, then remove the lid and bake for another 15-20 minutes until the bread is deep golden brown. You'll know it's done when it sounds hollow when tapped on the bottom. The steam from the Dutch oven creates that perfect crust while keeping the interior soft and pillowy—exactly what you want in sandwich bread.
Cool and Slice for Maximum Freshness
Remove the bread from the Dutch oven and let it cool completely on a wire rack for at least 1 hour. This cooling step is crucial—it allows the bread to set properly and prevents it from becoming gummy. The crust will firm up as it cools, giving you that satisfying crunch when you take your first bite.
Once cooled, slice the bread into ½-inch thick pieces. The interior should be soft with an open crumb structure, perfect for holding fillings without falling apart. Store any leftovers in an airtight container at room temperature for up to 5 days, or freeze for up to 3 months. This bread tastes best fresh, so I always make sure to enjoy it within the first couple of days when it's at its peak.
Pro Tips For Making 8 Hour Sourdough Sandwich Bread
- STRETCH AND FOLD: Use a bench scraper to fold the dough sharply—drag it across the surface like you’re cutting butter, then lift and rotate the dough. This develops gluten faster than gentle folds, especially when mixing bread flour and all-purpose flour together. I learned this the hard way after making dough that looked like mashed potatoes instead of bread.
- WEIGH YOUR WATER: Measure water by weight (grams) if your recipe calls for it—scaling is more precise than volume cups. Cold water (68°F/20°C) is ideal for this 8-hour schedule; warm water speeds fermentation but risks overproofing. I used to eyeball it, and my sandwich loaves always turned out either gummy or dense.
- SKIP THE SUGAR STRETCH: Granulated sugar in this recipe isn’t for sweetness—it’s to feed the starter and kickstart fermentation. If your starter is already active (bubbly and doubling in 4-6 hours), cut the sugar to half. Too much sugar can make the dough ferment too aggressively, leading to a collapsed loaf when baked.
- PROOF AT ROOM TEMP: Place your dough in a lightly oiled bowl, cover it with a damp towel, and let it proof at room temperature (70-72°F/21-22°C) for the full 8 hours. A warm oven with the light on (50°F/10°C) works in a pinch, but don’t exceed 75°F—your dough will overproof and lose structure. I burned out my oven once trying to rush it; now I just wait.
Pro cooking tips for 8 hour sourdough sandwich bread
Dutch Oven Mastery
Your Dutch oven isn't just a pot—it's the secret weapon for that perfect sandwich bread crust. I use a 5-quart Lodge cast iron because it retains heat beautifully and creates the steam needed for that crackly bottom crust.
Preheat it in the oven for 45 minutes before adding your dough—this ensures even heat distribution. The cornmeal coating isn't just for flavor; it creates a barrier that prevents sticking and adds that golden crunch.
Pro tip: Place the dough seam-side up in the Dutch oven for maximum rise and even browning. 🔥
Gluten Development
Don't skip the stretch-and-fold technique during bulk fermentation—this is where the magic happens for that open crumb structure. Wet your hands and grab one side of the dough, stretch it upward, then fold it over itself. Repeat this 2-3 times during the 4-hour bulk fermentation.
This builds strength in the gluten network, which gives your bread that perfect sandwich texture—soft inside but sturdy enough to hold fillings. I find doing this every 30 minutes works best, but even 2 hours makes a noticeable difference. 💪
Cold Proofing Secrets
The 12-16 hour cold proof in the fridge is where the bread develops its signature flavor. I like to place my dough in a lightly greased bowl and cover it with a damp towel to prevent drying.
The slow fermentation in the fridge allows the gluten to relax and the flavors to meld beautifully. When you take it out, the dough should be puffy and aromatic—this is when you know it's ready for the oven.
Trust the process: the longer it proofs (up to 16 hours), the more complex the flavor becomes. ❄️
Baking Temperature
Baking at 425°F with the Dutch oven lid on for the first 30 minutes creates the ideal steam environment for that crispy crust. After removing the lid, reduce the heat to 375°F for the final 15-20 minutes to ensure even browning.
The bread is done when it reaches 190-200°F internally and sounds hollow when tapped on the bottom. I always use an instant-read thermometer to check—this prevents overbaking, which can make the bread dry. 🌡️
Cooling Matters
Resist the urge to slice your bread immediately after baking—cooling for at least 1 hour on a wire rack is crucial. This allows the steam inside to escape, preventing a gummy texture. The crust will firm up as it cools, giving you that satisfying crunch.
I also recommend slicing the bread before freezing—this way, you can toast straight from frozen without worrying about uneven slices. For extra freshness, store leftovers in an airtight container with a damp towel to keep them soft. 💫
Nutrition facts
Frequently asked questions
Can I make this sandwich bread without a Dutch oven?
Yes, but the crust won't be as crispy. Use a baking stone with steam—place a metal tray on the oven rack below it, pour 1 cup hot water in when loading the dough, then bake at 425°F for 35-40 minutes covered with foil. The steam helps create some oven spring, though not as dramatic as a Dutch oven.
Why does my dough collapse after shaping? This usually happens when gluten isn't properly developed or the dough is over-proofed.
How do I know when the bread is fully baked?
Look for three signs: the internal temperature should reach 190-200°F, the crust should be deep golden brown, and it should sound hollow when tapped on the bottom. The bread should also pull away slightly from the Dutch oven sides. Overbaking dries out the crumb, so pull it out when it's just past the minimum time.
Can I add seeds or herbs to this recipe?
Try adding 1 tbsp sesame seeds or 1 tsp dried rosemary to the dough before final shaping. For extra flavor, sprinkle seeds on top before baking. Just reduce water by 1 tbsp if adding dry ingredients to maintain proper hydration. The open crumb structure makes it perfect for seed-filled variations.
What's the best way to reheat stale sandwich bread?
Wrap slices in foil and warm at 350°F for 5-7 minutes for crispy toast. For softer bread, use the microwave with a damp paper towel over the bread for 10-15 seconds. The best solution? Make fresh bread every 3-4 days—it's worth the effort for that perfect sandwich texture!