Sourdough Discard Sandwich Loaf Recipe
Introduction
This Sourdough Discard Sandwich Loaf is a fantastic way to use your unfed sourdough starter while enjoying a soft, flavorful homemade bread. With a combination of instant yeast and sourdough discard, it rises quickly and bakes into a perfect sandwich loaf with a golden crust.

Ingredients
- 100 g sourdough discard (unfed sourdough starter)
- 250 g water
- 500 g bread flour (or all-purpose flour)
- 10 g salt
- 20 g sugar
- 60 g salted butter, room temperature
- 7 g instant yeast
Instructions
- Step 1: Combine the sourdough discard, water, and flour in the bowl of your stand mixer or Thermomix. Mix until it forms a shaggy dough, about 30 seconds. Let the dough rest for 30 minutes.
- Step 2: Add the salt, sugar, butter, and instant yeast to the bowl. Knead the dough with the dough hook attachment for 3 to 6 minutes until it becomes elastic, silky, and slaps the sides of the bowl.
- Step 3: Let the dough rise in a warm place for about an hour, or until it doubles in size. The instant yeast will make it rise fairly quickly.
- Step 4: While waiting, lightly butter a sandwich loaf or pullman pan to prepare for shaping.
- Step 5: Turn the risen dough out onto the counter with the smooth side down. Gently stretch it into a rectangle, keeping it elastic and easy to handle.
- Step 6: Shape the dough into a sandwich loaf by folding the short sides into the middle, then rolling it tightly into a log with the seam underneath. Tighten the loaf by pulling it gently towards you without lifting it off the counter.
- Step 7: Place the shaped dough into the buttered loaf tin and let it rise again until it just rises above the rim of the tin, about an hour depending on room temperature.
- Step 8: Preheat your oven to 180°C (350°F). Just before baking, mist the top of the dough with water and place the loaf in the oven, making sure there’s enough room for the bread to expand.
- Step 9: Bake the bread for 40 to 45 minutes or until the crust is golden brown.
- Step 10: Remove the loaf from the tin and cool on a wire rack before slicing.
Tips & Variations
- For a richer flavor, try substituting half the butter with olive oil.
- You can add seeds or herbs to the dough for extra texture and taste.
- If you don’t have a stand mixer, knead the dough by hand for 8 to 10 minutes until smooth and elastic.
- Using a pullman pan with a lid will create a perfectly square sandwich loaf.
Storage
Store the cooled loaf wrapped in a clean kitchen towel or in a bread box at room temperature for up to 3 days. For longer storage, slice and freeze in an airtight bag for up to 3 months. To reheat, toast slices directly from frozen or warm the whole loaf in the oven wrapped in foil.
How to Serve

Serve this delicious recipe with your favorite sides.
FAQs
Can I use all-purpose flour instead of bread flour?
Yes, all-purpose flour works well in this recipe, though bread flour will give you a slightly chewier texture due to higher protein content.
Why do I need both sourdough discard and instant yeast?
The sourdough discard adds flavor and a subtle tang, while the instant yeast ensures a quick and reliable rise, making this bread faster to prepare than a traditional sourdough loaf.
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Sourdough Discard Sandwich Loaf Recipe
- Total Time: 3 hours 20 minutes
- Yield: 1 sandwich loaf 1x
Description
This Sourdough Discard Sandwich Loaf recipe transforms leftover sourdough starter into a soft, elastic, and flavorful sandwich bread using instant yeast for a quick rise. Perfect for everyday sandwiches, this recipe involves mixing, kneading, two rises, and baking to produce a golden brown, tender loaf with a light crumb.
Ingredients
Ingredients
- 100 g Sourdough Discard (unfed sourdough starter)
- 250 g Water
- 500 g Bread Flour (or All Purpose Flour)
- 10 g Salt
- 20 g Sugar
- 60 g Butter (salted, room temperature)
- 7 g Instant Yeast
Instructions
- Mix Dough: Combine the sourdough discard, water, and flour in the bowl of a stand mixer or Thermomix. Mix until a shaggy dough forms, about 30 seconds. Let the dough rest for 30 minutes to hydrate.
- Add Remaining Ingredients and Knead: Add salt, sugar, butter, and instant yeast to the bowl. Knead using a dough hook attachment on a stand mixer for 3 to 6 minutes until the dough is elastic, silky, and detaches from the bowl sides.
- First Rise: Let the dough rise at room temperature for about 1 hour or until it doubles in size. The rise time depends on ambient temperature; it will be longer in cooler environments.
- Prepare Loaf Pan: Lightly butter a sandwich loaf or Pullman pan while the dough is rising to prevent sticking.
- Shape the Dough: Turn the risen dough onto a countertop with the smooth side down and sticky side up. Gently shape it into a rectangle by stretching it out elastically.
- Form the Sandwich Loaf: Position the short edge of the rectangle towards you. Fold each side into the middle, then roll tightly into a log with the seam underneath. Tighten the dough by pulling it towards you without lifting it off the surface to create surface tension.
- Second Rise: Place the shaped dough seam side down into the buttered loaf pan. Let it rise again for about 1 hour, until the dough is just above the rim of the tin.
- Preheat Oven and Mist Dough: Preheat your oven to 180°C (350°F) for 10 minutes. Lightly spray the top of the dough with water mist before baking to promote a better crust.
- Bake: Bake the loaf at 180°C (350°F) for 40 to 45 minutes until golden brown on top.
- Cool: Remove the loaf from the pan and cool completely on a wire rack before slicing to maintain structure and texture.
Notes
- Using instant yeast instead of wild yeast allows for a quicker rise and more predictable fermentation.
- Butter the loaf pan well to prevent sticking and help form a beautiful crust.
- Resting the initial mixed dough (autolyse) improves gluten development and dough extensibility.
- Water misting before baking helps create a crisp crust.
- Allow the loaf to cool fully before slicing for best texture and crumb structure.
- Adjust rising times based on ambient temperature to avoid under- or over-proofing.
- Prep Time: 45 minutes
- Cook Time: 45 minutes
- Category: Bread
- Method: Baking
- Cuisine: American
Keywords: sourdough discard bread, sandwich loaf, easy bread recipe, instant yeast bread, homemade bread, soft sandwich bread

