Sourdough Discard Bread Recipe

I always feel good when I can use up leftover sourdough discard in a delicious, new way.

This quick sourdough discard bread recipe transforms that tangy discard into a savory, show-stopping loaf with a fragrant caramelized onion swirl that fills my kitchen with a warm aroma. We’re skipping the long fermentation time for this sourdough discard bread recipe by using chemical leavening, meaning you get all the tangy sourdough flavor without the wait. The secret ingredient here is a rich, savory caramelized onion and thyme swirl that elevates simple bread into a comforting side dish for family dinners or a centerpiece for a charcuterie board. This particular sourdough discard bread recipe guarantees a moist, flavorful crumb and a beautiful golden crust, using up your discard in the most delicious way. It’s truly a game-changer for quick-bread lovers who want to add a homemade touch to their weeknight meals, making healthy eating easier. I love how this family-friendly sourdough discard bread recipe provides a wonderful alternative to traditional loaves and is perfect for a busy weeknight.

Ingredients

• 200 g (0.85 cup) unfed sourdough discard (100% hydration)
  This provides the characteristic tangy flavor. Use discard straight from the fridge; it doesn’t need to be active. Ensure it’s 100% hydration (equal parts flour and water by weight).
• 300 g (2.5 cups) all-purpose flour
  Forms the bulk of the bread structure. Use a kitchen scale for accuracy to avoid a dense crumb. (I find weighing flour helps prevent over-mixing, too.)
• 10 g (2 teaspoons) baking powder and 2.5 g (0.5 teaspoon) baking soda
  The primary leavening agents that provide a fast rise. Ensure both are fresh for proper lift; the baking soda reacts with the acidic discard to create lift.
• 5 g (1 teaspoon) fine sea salt
  Balances the flavors and enhances the sweetness of the caramelized onions. Fine sea salt dissolves quickly and evenly. Adjust slightly if using different salts.
• 30 ml (2 tablespoons) extra virgin olive oil, plus more for sautéing and brushing
  Adds richness and moisture to the crumb. Use high-quality olive oil for better flavor. Reserve some for brushing the top before baking.
• 120 ml (0.5 cup) water, room temperature
  Hydrates the flour and helps form the dough. Add in small increments as discard hydration can vary slightly. Room temperature water incorporates easily.
• 450 g (2 large or 3 medium) yellow onions, thinly sliced
  The key ingredient for the savory swirl filling. Thin slicing ensures even caramelization and soft texture in the finished bread. Yellow onions provide the best balance of sweetness when cooked down.
• 7 g (2 tablespoons) fresh thyme leaves, finely chopped
  Adds a complementary aromatic flavor to the savory onions. Fresh thyme provides superior flavor to dried thyme. Reserve some for garnish.
• 5 g (1 teaspoon) light brown sugar (optional)
  Helps achieve deep caramelization and enhances sweetness. Stir in during the last 10 minutes of cooking the onions. Omit if you prefer less sweetness in the final product.

Instructions

1. Begin by caramelizing the onions: Heat 15 ml (1 tablespoon) of olive oil in a large skillet over medium-low heat. Add the thinly sliced onions and a pinch of salt; cook slowly for 35-45 minutes, stirring occasionally, until deeply golden brown, soft, and sweet. If using, stir in the light brown sugar during the last 10 minutes; stir in 5 g (1 tablespoon) of the fresh thyme and let the mixture cool completely before using.
2. Preheat your oven to 190°C (375°F): Lightly grease and flour a 23 x 13 cm (9 x 5 inch) loaf pan. This prevents sticking and ensures a clean release.
3. Prepare the dry ingredients: In a large bowl, whisk together the all-purpose flour, baking powder, baking soda, and fine sea salt. Whisking ensures the leavening agents are evenly distributed throughout the dough.
4. Mix wet ingredients: In a separate medium bowl, combine the sourdough discard, 30 ml (2 tablespoons) olive oil, and 120 ml (0.5 cup) water. Mix thoroughly until well combined.
5. Combine wet and dry: Pour the wet ingredients into the dry ingredients. Stir gently with a wooden spoon or spatula until a shaggy dough forms. Be careful not to overmix, as this will lead to a tough, dense bread. If the dough looks too dry, add 1 tablespoon more water at a time until it comes together.
6. Knead and roll: Lightly flour a clean work surface. Turn the dough out and gently knead for about 30 seconds, just enough to bring it together into a cohesive ball. Using a floured rolling pin, roll the dough into a rectangle approximately 30 x 20 cm (12 x 8 inches).
7. Add the swirl filling: Spread the cooled caramelized onion mixture evenly over the rolled-out dough, leaving a small border around the edges. Reserve a small amount of onions and fresh thyme for garnish if desired.
8. Roll into loaf: Starting from one of the longer sides, tightly roll the dough into a log. Pinch the seam closed firmly to prevent unraveling during baking. Carefully transfer the rolled dough, seam-side down, into the prepared loaf pan. Brush the top lightly with a little olive oil.
9. Bake: Bake for 40-45 minutes, or until the top is golden brown and a wooden skewer inserted into the center comes out clean. An internal temperature of 93-96°C (200-205°F) indicates it’s fully baked.
10. Cool and serve: Remove the loaf from the oven and let it cool in the pan for 10 minutes before transferring it to a wire rack to cool completely. Cooling completely is crucial for a clean, even slice. Garnish with reserved onions and fresh thyme when serving.

How to Serve Your Savory Discard Bread Loaf

This savory sourdough discard bread adds a unique twist to a variety of meals, making it a perfect addition to family dinners. The rich, tangy flavor and soft texture make it more than just a simple side dish. Here are a few ways we like to serve it:

• Slice and serve warm alongside a hearty stew or soup for a comforting meal.
• Toast slices and use them as a base for appetizers, topped with goat cheese, balsamic glaze, or a soft-boiled egg.
• Pair with rich, creamy dishes like a baked lasagna, chicken casserole, or roast chicken.
• Use it for a gourmet grilled cheese sandwich or paninis to upgrade your quick lunch ideas.

When I serve this, I often find myself toasting slices and adding avocado and everything bagel seasoning for a quick, healthy breakfast option.

Making Ahead and Storing Sourdough Discard Bread

This sourdough discard bread stores incredibly well, making it excellent for meal prep throughout the week. The flavor actually deepens a bit on day two.

• Storing leftovers: Keep the completely cooled loaf tightly wrapped in plastic or foil at room temperature for up to 3 days.
• Freezing instructions: For longer storage, slice the cooled loaf completely and freeze individual slices in an airtight container for up to 3 months.
• Reheating: Reheat frozen slices in a toaster oven for 2-3 minutes or bake the whole loaf lightly wrapped in foil at 175°C (350°F) for 10-15 minutes to refresh.
• Prepare ahead: You can caramelize the onions up to 2 days ahead and store them in the fridge to save time on baking day.

FAQs

What kind of sourdough discard should I use?

Use unfed discard straight from the fridge; 100% hydration discard works best. The acidity in unfed discard reacts with the baking soda to create lift, which is key for this quick bread method. This easy sourdough discard bread recipe relies on this specific chemical reaction.

Can I use dried herbs instead of fresh thyme?

Yes, you can substitute 1 teaspoon of dried thyme for the 2 tablespoons of fresh thyme. Adjusting the amount is important as dried herbs are stronger in flavor. This change is perfect for a quick meal when you don’t have fresh herbs available.

Why do I need to let the caramelized onions cool down?

Adding hot filling to the dough will start activating the chemical leaveners prematurely and result in a dense, improperly structured loaf. Ensure the filling is completely cool before adding it to prevent a poor rise.

Can I add cheese to this recipe?

Yes, try adding 1/2 cup of shredded Parmesan or Gruyère cheese to the onion mixture when spreading the swirl. I find that a good quality sharp cheddar also works well and adds a tangy note that pairs nicely with the onions and makes for a great family-friendly meal.

What happens if I overmix the dough?

Overmixing will develop the gluten too much, resulting in a tough, chewy, or rubbery texture rather than a tender quick-bread crumb. Mix only until combined to keep it light and soft.

How do I know when the sourdough discard bread is done baking?

The top will be golden brown, and a wooden skewer inserted into the center should come out clean. An internal temperature of 93-96°C (200-205°F) is a sure indicator of doneness.

How should I store this bread for healthy eating during the week?

Keep the cooled loaf tightly wrapped at room temperature for up to 3 days, or freeze sliced for up to 3 months. To reheat, toast individual slices or wrap the loaf in foil and bake at 175°C (350°F) for 10 minutes to refresh. This makes it ideal for healthy eating throughout the week.

Conclusion

This easy sourdough discard bread recipe proves that using your leftover discard doesn’t mean you have to wait hours for a delicious loaf. Save this recipe on Pinterest for quick access to easy dinner ideas for your healthy eating plan.

sourdough discard bread recipe

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• Author: Rachel Thompson
• Total Time: 95 minutes
• Yield: 1 loaf 1x
• Diet: General

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Description

This quick bread recipe uses sourdough discard and chemical leavening instead of a long fermentation time to create a savory loaf. A fragrant caramelized onion and thyme swirl adds rich flavor and moisture to this show-stopping bread.

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Ingredients

Scale 1x2x3x

• 0.85 cup unfed sourdough discard (100% hydration)
• 2.5 cups all-purpose flour
• 2 teaspoons baking powder
• 0.5 teaspoon baking soda
• 1 teaspoon fine sea salt
• 2 tablespoons extra virgin olive oil, plus more for cooking and brushing
• 0.5 cup water, room temperature
• 2 large yellow onions, thinly sliced
• 2 tablespoons fresh thyme leaves, finely chopped
• 1 teaspoon light brown sugar (optional)

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Instructions

1. Caramelize Onions: Heat oil in a large skillet over medium-low heat. Add sliced onions and cook for 35-45 minutes until deeply golden brown. Stir in brown sugar (optional) and fresh thyme, then let the mixture cool completely.
2. Prepare Pan and Oven: Preheat the oven to 375°F (190°C). Grease and flour a 9×5 inch loaf pan.
3. Mix Dry Ingredients: In a large bowl, whisk together the all-purpose flour, baking powder, baking soda, and salt.
4. Combine Wet Ingredients: In a separate bowl, mix the sourdough discard, olive oil, and water.
5. Form Dough: Pour the wet mixture into the dry ingredients. Stir gently until just combined into a shaggy dough, being careful not to overmix.
6. Roll and Spread Filling: Lightly knead the dough for 30 seconds and roll it into a 12×8 inch rectangle. Spread the cooled caramelized onion mixture evenly over the dough.
7. Shape Loaf: Roll the dough tightly into a log, starting from the long side. Pinch the seam closed and place the log seam-side down in the prepared loaf pan. Brush the top with olive oil.
8. Bake Loaf: Bake for 40-45 minutes, or until the top is golden brown and a skewer inserted comes out clean. An internal temperature of 200°F (93°C) indicates doneness.
9. Cool and Serve: Let the loaf cool in the pan for 10 minutes before transferring it to a wire rack to cool completely. Garnish with reserved onions and thyme when serving.

Notes

Do not overmix the dough to avoid developing gluten, which results in a tough texture. Ensure the caramelized onion filling is completely cool before adding it to prevent premature activation of leaveners. For best slicing results, cool the bread completely on a wire rack before cutting.

• Prep Time: 50 minutes
• Cook Time: 45 minutes
• Category: Bread
• Method: Baking
• Cuisine: American

Nutrition

• Serving Size: 1 slice
• Calories: 160 kcal
• Sugar: 3 g
• Sodium: 166 mg
• Fat: 3 g
• Saturated Fat: 0.5 g
• Unsaturated Fat: 2.5 g
• Trans Fat: 0 g
• Carbohydrates: 33 g
• Fiber: 1.6 g
• Protein: 3.3 g
• Cholesterol: 0 mg