Sourdough Discard Chocolate Brownies
Sourdough Discard Chocolate Brownies are a delicious way to utilize leftover sourdough starter, turning what might otherwise be waste into a rich, fudgy treat. These brownies have that perfect balance between a tender interior and a slightly crisp edge, satisfying your chocolate cravings like nothing else. They’re surprisingly easy to whip up and offer a unique depth of flavor thanks to the sourdough starter. It’s a wonderful way to put that kitchen staple to good use while indulging in something oh-so-decadent.
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I first stumbled upon this recipe in a quest to avoid wasting my sourdough discard and immediately fell in love with the synergy of flavors. I remember sharing them with friends during a casual gathering, and every bite brought smiles and compliments. The richness of chocolate combined with the tang from the sourdough balances perfectly, making these brownies a total crowd-pleaser. If you’re looking for a simple yet impressive dessert, I wholeheartedly invite you to try Sourdough Discard Chocolate Brownies — you won’t regret it!
Why You’ll Love This Recipe
- Simple & Quick: These brownies will come together in about 30 minutes, making them a fantastic last-minute dessert option.
- Irresistible Flavor: The combination of chocolate and a hint of tang from the sourdough is simply divine.
- Eye-Catching Appeal: The glossy top and rich, dark color will impress anyone you serve them to.
- Flexible Serving: Perfect for a cozy night at home or a potluck gathering — they disappear fast!
- Diet-Friendly Options: You can easily make these brownies gluten-free or dairy-free without sacrificing flavor.
Ingredients You’ll Need
- 1 cup all-purpose flour: This serves as the base for your brownies, providing structure. For a gluten-free version, consider a 1:1 gluten-free baking blend.
- 1 cup granulated sugar: Adds sweetness to balance the chocolate and sourdough flavors.
- ½ cup unsweetened cocoa powder: Dark, rich cocoa powder ensures a deep chocolate flavor.
- ½ teaspoon baking soda: Helps these brownies rise a bit for that perfect chewy texture.
- ¼ teaspoon salt: Enhances all the flavors, rounding out the sweetness of the sugar.
- 2 large eggs: Binds the ingredients together and contributes to the brownies’ fudginess.
- ½ cup unsalted butter, melted: Brings richness and moisture. You can substitute with coconut oil if preferred.
- 1 cup sourdough discard: This is your secret ingredient, adding moisture and a subtle tang to the brownies. It’s best to use it at room temperature.
How to Make Sourdough Discard Chocolate Brownies
- Prep Your Oven: Preheat your oven to 350°F (175°C). This ensures your brownies bake evenly and set perfectly.
- Mix Dry Ingredients: In a medium bowl, whisk together 1 cup all-purpose flour, ½ cup unsweetened cocoa powder, ½ teaspoon baking soda, and ¼ teaspoon salt until well combined.
- Combine Wet Ingredients: In a large mixing bowl, mix ½ cup melted unsalted butter and 1 cup granulated sugar. Stir until smooth. Then, add 2 large eggs and 1 cup of sourdough discard; mix until everything is well incorporated.
- Combine Mixtures: Gradually add the dry ingredients into the wet mixture. Stir gently until just combined, being careful not to overmix.
- Bake: Pour the brownie batter into a greased 9×9-inch baking pan, spreading it evenly. Bake in your preheated oven for approximately 25-30 minutes, or until a toothpick comes out with a few moist crumbs.
- Cool and Cut: Allow the brownies to cool in the pan for at least 10 minutes before slicing into squares. Enjoy the rich aroma wafting through your kitchen!
Storing & Reheating
To store, simply place your brownies in an airtight container at room temperature for up to 3 days. If you’re looking to keep them longer, pop them in the refrigerator, where they can last for up to a week. For longer storage, freeze the brownies wrapped tightly in plastic wrap and then in aluminum foil for up to 3 months. When ready to enjoy, give them a quick warm-up in the microwave for about 10-15 seconds to refresh their delicious texture.
Chef’s Helpful Tips
- Avoid Overmixing: When combining the wet and dry ingredients, stir just until incorporated. Overmixing can make the brownies tough.
- Use Room Temperature Ingredients: Bring your eggs and sourdough starter to room temperature for better emulsification.
- Don’t Skimp on Butter: The unsalted butter is crucial for rich flavor and moisture — melted is key for that fudgy texture.
- Enhance Your Flavor: Consider adding ½ a cup of chocolate chips or chopped nuts for an extra layer of texture and flavor.
When it comes to desserts, Sourdough Discard Chocolate Brownies check all the boxes. They’re easy, quick to prepare, and utterly delicious! It’s hard to believe that such a simple combination can create something so indulgent and satisfying. I encourage you to experiment with this recipe, maybe adding a sprinkle of sea salt on top or trying different types of chocolate. Whatever you decide, your taste buds will thank you!

Recipe FAQs
Can I use a different type of flour?
Absolutely! You can substitute all-purpose flour with a gluten-free flour blend if you need a gluten-free option. Just ensure the blend contains xanthan gum for the best texture.
What should I do if my batter seems dry?
If the batter is unusually thick, consider adding a tablespoon of water or milk to loosen it up slightly. The sourdough discard should provide moisture, but variations can occur.
How can I tell when my brownies are done?
The best way to check for doneness is by inserting a toothpick into the center of the brownies. They are done when it comes out with a few moist crumbs but isn’t soaking wet.
Can I make these brownies ahead of time?
Yes! You can prepare the batter ahead and store it in the refrigerator for up to 24 hours. When ready to bake, allow it to come to room temperature before placing it in the oven.
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📖 Recipe Card

Sourdough Discard Chocolate Brownies
- Prep Time: NaN
- Cook Time: 25-30 minutes
- Total Time: 0 hours
- Yield: 16 servings 1x
- Category: BROWNIES & BARS
- Method: Baking
- Cuisine: Dessert
Description
These Sourdough Discard Chocolate Brownies are a delightful treat combining rich chocolate flavor with the tang of sourdough discard. They’re easy to prepare and perfect for satisfying your sweet tooth or impressing guests with something unique and delicious.
Ingredients
- 200g unsalted butter
- 200g dark chocolate
- 3 eggs
- 250g sugar
- 250g sourdough discard
- 50g cocoa powder
- 75g plain flour
- 100g chocolate chips
Instructions
- Preheat your oven to 180C/160C Fan and line a 9″ square baking tray with parchment paper.
- Melt the unsalted butter and dark chocolate together in a heatproof bowl over boiling water or in the microwave for 1-2 minutes until melted. Allow to cool to room temperature.
- In a separate bowl, combine eggs, sugar, and sourdough discard, mixing thoroughly.
- Gently pour in the cooled chocolate mixture and fold together until combined.
- Add cocoa powder and plain flour on top of the chocolate mix, folding together again until incorporated.
- Fold in the chocolate chips, then pour the batter into the prepared baking tray.
- Bake in the oven for 25-30 minutes.
- Once baked, allow to cool completely in the tin, then refrigerate for a minimum of two hours.
Notes
For an added crunch, consider topping with nuts before baking.
Make sure not to overbake for fudgy brownies!
Allowing brownies to cool in the fridge enhances their texture.
Nutrition
- Serving Size: 1 brownie
- Calories: 200
- Sugar: 18g
- Sodium: 50mg
- Fat: 12g
- Saturated Fat: 7g
- Unsaturated Fat: 4g
- Trans Fat: 0g
- Carbohydrates: 24g
- Fiber: 1g
- Protein: 3g
- Cholesterol: 70mg
