All Purpose Flour Sourdough Sandwich Bread Recipe: Crusty Crunch and Soft Interior in One Bake

This all-purpose flour sourdough sandwich bread delivers the perfect balance of crusty exterior and soft interior—no artisanal flour required. The secret lies in a well-fed starter and precise fermentation, transforming simple ingredients into bread with restaurant-quality texture.

I've refined this recipe over years of baking, ensuring foolproof results even for beginners.

What sets this recipe apart is the two-stage fermentation that develops flavor while creating that signature open crumb structure. You'll work with your starter, mix a straightforward dough, and let it rise twice—once at room temperature, then overnight in the fridge. This slow fermentation builds depth without requiring advanced techniques.

The result is sandwich bread with a shatteringly crisp crust that gives way to tender, airy layers perfect for slicing. Each loaf yields about 16 slices, ideal for toast, sandwiches, or charcuterie boards. The dough is forgiving, and the process is methodical enough to guarantee success every time.

Whether you're new to sourdough or looking for a reliable all-purpose version, this recipe delivers professional-quality bread with minimal effort. Let's get started with the step-by-step process that transforms flour, water, and a little patience into perfect sandwich bread.

Ingredients for all purpose flour sourdough sandwich bread

Fourteen simple ingredients transform into restaurant-style sandwich bread with crisp crust and soft crumb.

The flour is non-negotiable here—King Arthur or Caputo all-purpose give the best balance of structure and tenderness. Bulk bins at Whole Foods often have high-protein options, but any 11-12% protein flour works. That active starter? It should be bubbly and smell tangy—feed it daily for 3 days before baking for peak activity. The butter adds richness, so don't skip the cold cubes. For the yeast, Trader Joe's sells fresh yeast in tubs that outperform packets every time. If your starter isn't ready, store-bought sourdough discard works in a pinch—just double the amount.

No sesame seeds? Poppy seeds or everything bagel seasoning add texture without changing flavor. Running low on cornmeal? Semolina or rice flour works just as well for dusting. The sugar can be swapped for honey or maple syrup (reduce water by 1 tbsp), but granulated keeps things neutral. For the water, filtered is best—tap water with strong chlorine can inhibit fermentation. If your dough feels too sticky after mixing, add ice water 1 tbsp at a time until it's just manageable. The butter should be cold enough to hold its shape but soft enough to mix—microwave for 10 seconds if too hard.

This dough is a 3-day project, but worth every minute. After the first rise, store it in the fridge overnight—the cold slows fermentation and develops incredible flavor. Once baked, let the loaves cool completely on a wire rack (at least 2 hours) to prevent soggy crust. Wrapped in a bread bag, they'll stay fresh for 5-7 days. For freezing, slice and toast directly from frozen—no thawing needed. The crust stays crispy even after reheating, making it perfect for toast or sandwiches all week.

Step-by-step instructions for all purpose flour sourdough sandwich bread

Here's how to craft that perfect sandwich bread with a crackly crust and airy interior—every slice will be a revelation.

In a large mixing bowl, combine the 5 cups all-purpose flour, 0.25 oz active dry yeast, 0.25 cup granulated sugar, and 1.5 tsp salt. This is your dry foundation, and mixing these together first ensures even distribution of flavor and structure. Create a well in the center and add the 1 cup active sourdough starter and 3 cups warm water (between 105-110°F).

Let the mixture sit for 5 minutes while the yeast activates—you'll see tiny bubbles forming on the surface. Then, using a wooden spoon, gently stir until everything comes together into a shaggy dough. This initial mix is where the magic begins, so don't rush it. The dough should be sticky but manageable, with a few dry spots still visible.

Add the 0.5 cup cold, cubed unsalted butter to the dough and use your hands to work it in. The butter should begin to soften slightly from the warmth of the dough, creating pockets of fat that will contribute to the bread's tender crumb. Knead the dough on a lightly floured surface for 8-10 minutes, folding and pressing until it becomes smooth and elastic.

Here's the thing—you're not just kneading; you're building gluten strands that will give your bread structure. You'll know it's ready when the dough springs back slowly when poked and feels firm yet pliable. If it's still too sticky, add 1 tablespoon of flour at a time until it holds its shape. Wrap the dough in plastic wrap and let it rest at room temperature for 1 hour. This first bulk fermentation is where the yeast really gets to work.

After the initial rest, turn the dough onto a lightly floured surface and gently shape it into a loose round. This isn't about perfection—it's about creating surface area for the yeast to work. Place the dough seam-side up in a greased 9x5-inch loaf pan and let it rise at room temperature for 1-1.5 hours, or until it has nearly doubled in size and the top looks slightly domed.

Real talk: the dough should puff up to about 1 inch above the rim of the pan. If it rises too quickly and looks overproofed (with large bubbles or a deflated top), give it a few extra minutes—underproofed dough leads to dense bread. Once it's ready, preheat your oven to 375°F while you prepare the next step.

Remove the risen dough from the pan and place it on a parchment-lined baking sheet. Lightly dust the top with 0.25 cup cornmeal—this creates a beautiful contrast against the crust and adds texture. Using a sharp razor blade or serrated knife, score the dough ½ inch deep in a crosshatch pattern. This isn't just for looks; it controls expansion and creates those gorgeous crusty sections.

Bake the bread for 30-35 minutes until it's deep golden brown and sounds hollow when tapped on the bottom. The internal temperature should reach 190-200°F. Don't walk away—this is the moment that matters. If the top browns too quickly, tent the bread with foil to prevent over-browning while it finishes baking.

Remove the bread from the oven and let it cool in the pan for 10 minutes. Then transfer it to a wire rack to cool completely—this is crucial for slicing. If you cut it too soon, the crumb will be gummy. While it cools, melt 1 tablespoon unsalted butter and brush it lightly over the top of the bread for extra shine and flavor.

Once cooled, sprinkle the 1 tbsp sesame seeds evenly over the top for that classic sandwich bread finish. Each slice should have a crisp, crackly exterior that gives way to a soft, open crumb perfect for holding fillings. Store wrapped at room temperature for up to 3 days, or freeze for longer storage. This bread is worth every minute of the process—trust me, your sandwiches will never be the same.

Storing and reheating this all purpose flour sourdough sandwich bread

Room-Temp Storage

Your freshly baked sourdough sandwich bread stays fresh for 3 days at room temperature when stored properly. Wrap each loaf tightly in a bread bag or beeswax wrap to lock in moisture—plastic bags trap steam and make the crust soggy.

I place the bread on a wire rack inside the bag to prevent condensation buildup. For extra crispiness, store in a cool, dark pantry away from heat sources like the oven.

If you notice the crust softening after 24 hours, revive it by placing the bread in a 350°F oven for 5-7 minutes to restore crispness. This works like magic for toast or sandwiches—just watch closely to avoid over-browning. 🔥

Fridge Preservation

For longer storage, refrigerate your bread in an airtight container with a paper towel underneath to absorb excess moisture. It’ll stay fresh for up to 7 days, though the crust may lose some crispness.

To reheat, wrap a slice in a damp paper towel and microwave for 10-15 seconds—this restores softness without drying it out. For sandwiches, I like toasting slices first for that perfect crunch.