There is nothing quite like the comforting aroma of freshly baked bread filling your home. The satisfaction of pulling a golden-brown loaf from the oven, knowing you created it with your own hands, is truly unmatched.

If you have been searching for a superior sourdough loaf bread recipe that delivers an incredibly soft and tender crumb every time, you have found it. I am excited to share my go-to method for a perfect sourdough sandwich loaf that is surprisingly easy to master, even for beginners. Get ready to bake a beautifully tender loaf, discover the secret to its amazing texture, and gain confidence in your sourdough journey.

Why You’ll Love This Recipe

This sourdough loaf bread recipe stands out because of a very special technique: incorporating a small tangzhong, or water roux, into the dough. This simple step is the key to achieving an unparalleled texture that will make this your favorite homemade bread.

The science behind tangzhong is fascinatingly simple: it gelatinizes starches, allowing the flour to absorb and retain significantly more moisture. This translates directly into tangible benefits for your home baking.

You will experience an exceptionally soft, tender, and fluffy crumb, making every slice a delight. The increased moisture means your bread stays moist and fresh longer, perfect for sourdough sandwich bread that lasts throughout the week.

Furthermore, a more hydrated and pliable dough leads to improved oven spring, giving your loaf a beautiful rise and an appealing appearance without any added stickiness during handling.

This recipe creates the perfect everyday bread, ideal for sandwiches, toast, or alongside any meal, offering a healthier option with no preservatives. While sourdough can sometimes seem intimidating, this recipe is designed for beginner sourdough bakers to achieve rewarding results. You will achieve that coveted fluffy interior that store-bought breads often lack, elevating your homemade bread game.

Ingredients Needed

For best results, I always recommend weighing your ingredients with a kitchen scale for consistent hydration and gluten development.

• 500 g (4 cups) all purpose flour
• 60 g (4 tbsp.) unsalted butter, softened, cut into cubes
• 12 g (1 tbsp.) sugar
• 9 g fine sea salt
• 50 g (1/4 cup) bubbly, active sourdough starter (100% hydration)
• 270 g (1 cup + 2 tbsp) warm water

Ingredient Notes & Substitutions

Flour: I often get questions about flour types. While this recipe uses all purpose flour, you can certainly adapt it. For higher protein flours like bread flour, or for whole wheat flour, you may need to adjust the hydration slightly. Lower protein flours might need about 15 grams less water to achieve the right dough consistency. Understanding gluten development is key here, as different flours absorb liquid differently.

Butter: I prefer unsalted butter as it allows me to control the salt content precisely. For dietary swaps, especially for a vegan option, plant-based butter or even olive oil can be used. If you opt for a salted plant-based butter, remember to reduce the fine sea salt in the recipe. Always ensure your butter is softened for proper incorporation into the dough, which helps create a smoother texture.

Sugar: The small amount of sugar in this recipe does more than just sweeten; it feeds the sourdough starter, aiding in fermentation, and also contributes to a more tender crumb. If you wish to substitute, honey can be used, typically at a 1:1 ratio. Keep in mind that honey is a liquid, so you might need to slightly reduce the warm water by about 5-10 grams to maintain the correct hydration.

Sourdough Starter: For optimal results, your sourdough starter needs to be bubbly and active, meaning it has recently been fed and is at its peak of activity, typically doubling or tripling in size. A 100% hydration sourdough starter means it is fed with equal parts flour and water by weight. Ensuring your starter is active is crucial for the dough to rise as expected.

Salt: Fine sea salt is important for both flavor and for strengthening the gluten structure in your dough. Do not skip it, as it significantly impacts the taste and texture of your sourdough loaf bread.

How to Make This Soft Sourdough Loaf Bread

Tangzhong Preparation

This is the secret to an incredibly soft sourdough loaf. From the total recipe quantities, take 25 grams (2 tablespoons) of the all purpose flour and 50 grams (3 tablespoons + 1 teaspoon) of the warm water. Whisk these together in a small saucepan until smooth. Cook over medium-low heat, stirring constantly with a whisk, until a thick, pudding-like paste forms, similar to a water roux.

This usually takes about 2-3 minutes. Remove the tangzhong from the heat, transfer it to a small bowl, and cover it with plastic wrap pressed directly onto the surface to prevent a skin from forming. Let it cool completely to room temperature before proceeding with the main dough. Remember, these quantities are subtracted from the overall flour and water listed in the ingredients section; the main ingredient list reflects the total amounts used in the entire recipe.

Baking Schedule

This is an overnight dough which takes approximately 10-12 hours to rise at 68 F. I typically start this sourdough loaf bread recipe the night before, in the evening, and plan to bake the following day. If your kitchen is warmer than 68 F, the dough will take less time to rise. Alternatively, you can start in the morning and bake in the afternoon or evening for a same-day baking schedule.

Mixing the Dough

In a stand mixer fitted with the paddle attachment, add the remaining all purpose flour (475 g or 3 cups + 2 tbsp + 2 tsp), unsalted butter, sugar, and fine sea salt. Mix on low speed until everything is combined and the butter resembles coarse crumbs. Now, add the bubbly, active sourdough starter, the remaining warm water (220 g or 1 cup minus 1 tbsp), and the cooled tangzhong. Mix until the flour is fully absorbed.

Sometimes, I like to get in there with my hands to finish mixing and ensure no dry bits remain. At this stage, the dough will feel slightly sticky and elastic. Cover the bowl with plastic wrap or a damp towel and let it rest for 30 minutes. While the dough is resting, I usually replenish my sourdough starter with fresh flour and water.

Kneading the Dough

After the dough has rested, switch to the dough hook attachment on your stand mixer. Run the machine on medium-low speed (number 3 on a KitchenAid) for 6-8 minutes. The dough should transform into a soft and supple consistency and should not stick to your hands. If it feels a bit sticky, you can add a light dusting of all purpose flour, a teaspoon at a time, until the desired texture is achieved. This kneading process is vital for developing the gluten, which gives the bread its structure and chew.

Hand Kneading Alternative

If you do not have a stand mixer, do not worry; this sourdough loaf can absolutely be made by hand. After mixing and resting for 30 minutes, transfer the dough onto a lightly floured work surface. Knead the dough for 8-10 minutes, or until it feels smooth, soft, and elastic. The key here is to relax into the process and focus on the texture of the dough, rather than obsessing over the exact time. You will feel the dough become more cohesive and pliable as the gluten development progresses.

First Rise (Bulk Fermentation)

Once kneaded, place the dough back into the bowl, cover it with plastic wrap, and let it rise overnight at room temperature (around 68 F) until it has approximately doubled in size. This bulk fermentation typically takes about 10-12 hours. For precise temperature control for rise times, especially if your kitchen is cool, consider using a proofing box or placing the covered bowl in a warm oven (turned off, of course). When ready, the dough should look domed and feel jiggly, with some small bubbles visible on the surface. It will feel soft and gassy when gently poked. A good indicator of sufficient gluten development at this stage is the windowpane test: gently stretch a small piece of dough; if you can stretch it thin enough to see light through it without tearing, it is ready.

Shaping the Loaf

In the morning, generously coat an 8.5×4 inch loaf pan with unsalted butter. Gently remove the dough onto a lightly floured work surface. Carefully flatten the surface of the dough to release any large air bubbles. Roll the dough into a log, tucking the ends underneath to create surface tension. Let it rest for 5-10 minutes. With lightly floured hands, gently cup the dough and pull it toward you to further tighten its shape. Using a bench knife, carefully transfer the shaped dough into the prepared loaf pan, seam side down.

Second Rise (Final Proof)

Cover the dough in the loaf pan with lightly oiled or buttered plastic wrap. Let it rest at room temperature until it has risen to about 1-inch above the rim of the pan. You can check the height by looking at the domed center portion of the dough. You are not necessarily looking for it to double in size again, but rather to achieve a light, airy puff. This second rise, or final proof, can take anywhere from 1.5 to 2 hours, or even longer, depending on your room temperature and the activity of your sourdough starter.

Remember, the warmer it is, the faster the dough will rise. A critical indicator for this final proof completion is the “poke test”: gently indent the dough with a floured finger; if the indentation slowly springs back, but does not disappear completely, it is ready to bake. If it springs back immediately, it needs more time. If it stays indented, it might be slightly over-proofed.

Baking Instructions

Preheat your oven to 375 F. For even higher oven spring and a beautiful golden brown crust, I recommend preheating your oven to 500 F. Once the dough goes into the oven, immediately reduce the temperature to 375 F and bake as directed. Place the loaf pan on the center rack of your preheated oven. Bake for about 45-50 minutes, or until the top is a deep golden brown. To confirm doneness, an oven thermometer inserted into the center of the loaf should read between 200-210 F (93-99 C).

Cooling

Once baked, cool the sourdough loaf in the pan for at least 10 minutes. Then, carefully transfer it to a cooling rack to cool completely. This step is incredibly important and often rushed! Waiting at least an hour before slicing with a serrated knife prevents a gummy interior, allowing the internal structure to set fully and the Maillard reaction in the crust to stabilize.

Mastering Your Sourdough Bake: Beyond the Basics

Achieving the Perfect Proof: Visual & Internal Cues

Judging when your sourdough dough is perfectly proofed is a skill that comes with practice, but I can give you some clear indicators. For the bulk fermentation, beyond simply doubling in size, look for specific visual cues. The dough should appear domed, light, and airy, with visible small bubbles on its surface. When you gently jiggle the bowl, the dough should quiver like a firm jelly. It should also feel noticeably softer and gassier than when you started, with a mild, pleasant fermented aroma.

For the final proof, the critical indicators for success lie in the “poke test.” Gently press a floured finger into the dough about half an inch deep. If the indentation slowly springs back, leaving a slight dimple, your dough is perfectly proofed and ready for the oven. If it springs back quickly and completely, it needs a bit more time. If the indentation stays put or collapses, you have likely over-proofed the dough, which can lead to a flat loaf with poor oven spring.

Finally, for absolute certainty about doneness, the optimal internal temperature of the baked loaf should be between 200-210°F (93-99°C). I highly recommend using an oven thermometer for this. It is the most reliable way to ensure your bread is fully baked through and avoids a raw, doughy center.

Adapting & Enhancing Your Loaf

Flour Adaptations: This sourdough loaf bread recipe is quite adaptable. If you are keen on using higher protein flours like bread flour, or even going for 100% whole grain flours like whole wheat flour, you might need to adjust the hydration. Whole wheat flour, for instance, often absorbs more liquid, so you might need to add an extra 10-20 grams of warm water to achieve the right dough consistency. Conversely, if your flour has a lower protein content, you might need to reduce the water slightly, by about 15 grams, to prevent the dough from being too slack.

Bake Time Adjustments: If you decide to make smaller loaves, perhaps in mini loaf pans, or a larger Pullman loaf pan, your bake time will need adjustment. Smaller loaves will bake faster, while larger loaves will take longer. Always rely on the internal temperature of the baked loaf, aiming for that 200-210°F range, for true doneness.

Using a Lid: For a truly exceptional sourdough sandwich bread crust, particularly if you are using a Pullman loaf pan or a Dutch oven with a lid, I recommend starting with the lid on for the first 20-25 minutes of baking. This traps steam around the loaf, which helps with oven spring and keeps the crust softer. After this initial period, remove the lid to allow the crust to brown beautifully and become crisp. This method is fantastic for achieving that perfect balance of a tender interior and a lovely, golden exterior.

Pro Tips & Troubleshooting

Pro Tips for Sourdough Success

Precision is Key: I cannot stress this enough: weighing ingredients with a scale for best results is fundamental for consistent hydration and gluten development. It is far more accurate than cup measurements.

Temperature Control: Sourdough is alive, and it responds to temperature. Adjusting rise time by controlling temperature is a game-changer. Aim for an ambient temperature of 75-80 F for fermentation, perhaps by using a proofing box or turning your oven on for a minute and then off. This helps with perfecting fermentation and proofing.

Pan Choice Matters: For a taller, more traditional sourdough sandwich loaf, I highly suggest using an 8.5×4 inch loaf pan. A 9×5 inch pan will also work, but your loaf might be slightly shorter.

Higher Oven Spring: To achieve maximum oven spring, preheat your oven to 500 F. Once the dough is placed inside, reduce the temperature to 375 F. This initial blast of heat gives the loaf a fantastic lift.

Do Not Rush Cooling: This is a common mistake! The importance of waiting at least an hour after baking before slicing cannot be overstated. Slicing too soon can lead to a gummy interior as the bread continues to cook and set internally during cooling.

Leveraging Tangzhong: Remember, the tangzhong method contributes to easier handling and creates a more forgiving dough. This is a huge advantage for beginner sourdough bakers, making the process less intimidating and more successful.

Common Mistakes to Avoid

Over-Proofing: A common error is over-proofing the second rise. This often results in a flat, dense loaf with poor oven spring because the yeast has expended all its energy. Look for the poke test to indicate readiness, not just size.

Inactive Starter: If your dough does not rise as expected during bulk fermentation, the culprit is often an inactive starter. Always check your sourdough starter vitality before baking; it should be bubbly, active, and pass the float test (a small spoonful floats in water).

Cold Butter: Using cold butter is a common mistake that affects texture. Softened unsalted butter blends seamlessly into the dough, contributing to a tender crumb. Cold butter will create lumps and will not incorporate properly.

Slicing Too Soon: As mentioned, slicing the bread too soon after baking can lead to a gummy texture. Resist the temptation and allow your loaf to cool completely on a cooling rack.

Cracking Crust: If your sourdough sandwich bread is cracking around the edges, it is often due to a lack of humidity in the oven or slight under-proofing. To counteract this, place a shallow pan of water on the bottom rack of your oven during baking to create steam, especially for the first part of the bake.

Serving & Storage

Serving Ideas

This sourdough loaf bread is incredibly versatile and perfect for everyday sandwiches. Think classic deli meat and cheese, a comforting peanut butter and jelly, or even a gourmet avocado toast. It is also fantastic for breakfast; toast slices and spread with your favorite jam, or use it to make the best French toast for Sunday mornings. For a more adventurous twist, you could even adapt this recipe slightly to make a cinnamon raisin bread.

For hearty meals, this loaf makes an exceptional grilled cheese sandwich, especially when paired with a warm bowl of tomato soup. It is also wonderful for making garlic Texas toast to serve alongside spaghetti, or even as a simple, crusty accompaniment to meatloaf.

Storage and Make-Ahead

Room Temperature Storage: Your baked sourdough loaf will stay fresh for up to 3 days when stored properly. Once completely cooled, I recommend storing it in a plastic bag or an airtight container at room temperature. This helps maintain its softness and prevents it from drying out.

Freezing for Freshness: Sourdough bread freezes beautifully! To freeze bread, ensure it is completely cool. Wrap the entire loaf tightly in plastic wrap, then an additional layer of aluminum foil. It can be stored in the freezer for up to 3 months. When you are ready to enjoy it, simply thaw it at room temperature, or for a warm, fresh-from-the-oven feel, reheat it in a preheated oven at 350 F (175 C) for about 10-15 minutes.

Cold Fermentation / Make-Ahead Dough: Yes, you can absolutely refrigerate the dough for a longer second rise or cold ferment the bulk dough overnight! Cold fermentation is a fantastic way to extend the process, develop deeper flavors, and fit baking into a daytime baking schedule. After the bulk fermentation, you can punch down the dough lightly, shape it, place it in the loaf pan, and then cover it and refrigerate it overnight or for up to 24 hours. When ready to bake, you can take it directly from the fridge and bake, though a slightly longer bake time or a few minutes at room temperature before baking might be beneficial to prevent a cold center.

Conclusion

This sourdough loaf bread recipe, with its unique tangzhong twist, is designed to be a triumph in your kitchen. You will create an exceptionally soft, moist, and wonderfully long-lasting loaf that will become a cherished staple. With these clear instructions, detailed visual cues, and comprehensive sourdough troubleshooting tips, even beginner sourdough bakers can achieve impressive, bakery-quality results. I encourage you to try this recipe, perhaps experimenting with variations like a cinnamon swirl or different flours, and explore the many serving ideas. Share your baking success, and feel free to ask any questions in the comments below!

FAQ

Can I refrigerate the dough for a longer second rise or cold ferment the bulk dough overnight?

Yes, absolutely! Cold fermentation is a great way to deepen the flavor of your sourdough and makes it easier to fit baking into your schedule. You can refrigerate the dough after the bulk fermentation (first rise) for an overnight cold ferment, or even for up to 24 hours. For the second rise, you can shape the dough, place it in the loaf pan, cover it, and refrigerate it. You can often bake it directly from the fridge, or let it sit at room temperature for 30 minutes to an hour for a slightly faster rise in the oven.

How do I adjust the recipe if I want to use different types of flour, like whole wheat or bread flour?

When substituting flours like whole wheat flour or bread flour, you will likely need to adjust the hydration. Whole wheat flour typically absorbs more liquid, so you might need to add an extra 10-20 grams of warm water. Bread flour, being higher in protein, can also absorb more liquid than all-purpose flour, so keep an eye on your dough’s consistency and add a little more water if it feels too stiff. Conversely, if your all-purpose flour has a lower protein content, you might want to reduce the initial water by about 15 grams.

What are suitable plant-based substitutes for butter in this sourdough sandwich bread recipe?

For a plant-based alternative, you can substitute the unsalted butter with an equal amount of softened plant-based butter. Olive oil can also work, but it will change the flavor and texture slightly; use about 45-50 grams (3-3.5 tablespoons) of olive oil. Remember to check the salt content of your chosen substitute and adjust the fine sea salt in the recipe accordingly if your substitute is salted.

How can I accurately tell when my sourdough dough is perfectly proofed during both the bulk and second rise?

For the first (bulk) rise, the dough should look visibly domed, feel soft and airy, and jiggle slightly when the bowl is moved. You should see small bubbles on the surface. For the second (final) rise, perform the “poke test”: gently press a floured finger into the dough. If the indentation slowly springs back, but not completely, it is ready. If it springs back immediately, it needs more time. If it stays indented and does not spring back at all, it might be over-proofed.

What are common reasons for sourdough sandwich bread cracking or turning out dense, and how can I prevent them?

Cracking around the edges of sourdough sandwich bread is often due to a lack of humidity in the oven during the initial baking phase, or sometimes slight under-proofing. To prevent this, you can place a shallow pan of water in the bottom of your oven for the first 15-20 minutes of baking. A dense loaf can result from an inactive sourdough starter, under-proofing, or severe over-proofing (where the gluten structure collapses). Ensure your starter is active, and always check for the precise visual cues for both bulk fermentation and the final proof.

Can I use a bread machine to mix and knead the dough for this recipe?

Yes, you can use a bread maker for the mixing and kneading phases of this sourdough loaf bread recipe. Simply add all the ingredients (including the cooled tangzhong) to your bread machine pan in the order specified by your machine’s manual (usually liquids first, then dry ingredients, with yeast/starter on top). Set it to the “Dough” cycle. Once the cycle is complete, you can remove the dough and proceed with the bulk fermentation, shaping, second rise, and baking in a conventional oven as directed in the recipe.

If using a cast iron enamel bread pan with a lid (like a Pullman pan or Dutch oven), should I keep the lid on for the entire baking time?

No, it is generally best to bake with the lid on for the initial part of the baking, and then remove it. For a sourdough sandwich bread, I recommend keeping the lid on for the first 20-25 minutes. This creates a steamy environment, which is excellent for oven spring and results in a softer crust. After this initial period, remove the lid to allow the crust to brown beautifully and achieve its desired color and texture.

What is the optimal internal temperature of the baked loaf for doneness?

For a perfectly baked sourdough loaf, the optimal internal temperature should be between 200-210°F (93-99°C). I always recommend using an oven thermometer inserted into the center of the loaf to ensure it is thoroughly cooked through. This prevents a gummy interior and guarantees the best texture.

What does ‘100% hydration sourdough starter’ mean?

A ‘100% hydration sourdough starter’ simply means that the starter is fed with equal parts flour and water by weight. For example, if you feed your starter with 50 grams of flour, you would also feed it with 50 grams of water. This is a very common hydration level for sourdough starters and is what this sourdough loaf bread recipe assumes.