Easy Sourdough Discard Brownies are rich, fudgy, and the perfect way to use up leftover sourdough starter. These brownies combine deep chocolate flavor with a soft, chewy texture, making them an irresistible treat for any chocolate lover.
Why You’ll Love This Recipe
These Easy Sourdough Discard Brownies are incredibly decadent with a crackly top and gooey center. They’re simple to make, reduce waste by using sourdough discard, and deliver bakery-quality results at home. Perfect for beginners and experienced bakers alike.
Ingredients

For the chocolate blend:
- 2 teaspoons vanilla extract
- 12 oz semi-sweet chocolate chips
- ½ cup unsalted butter
- ½ cup cocoa powder
For the wet ingredients:
- ½ cup sourdough starter discard
- ½ cup packed brown sugar
- 1 cup granulated sugar
- 1 egg yolk
- 2 large eggs
For the dry ingredients:
- 1 cup all-purpose flour
- 1 teaspoon salt
Instructions
- Preheat oven to 350°F (176°C) and line a 9×9-inch baking dish with parchment paper.
- In a saucepan over low heat, melt butter. Add chocolate chips, cocoa powder, and vanilla extract. Stir until smooth and fully melted. Let cool slightly.
- In a large bowl, beat eggs, egg yolk, brown sugar, and granulated sugar for 7–10 minutes until light and creamy.
- Add sourdough discard and the cooled chocolate mixture. Mix on low speed until combined.
- Gently fold in flour and salt until just incorporated. The batter will be thick.
- Pour batter into prepared pan and smooth the top.
- Bake Easy Sourdough Discard Brownies for 35–40 minutes, until a toothpick inserted shows moist crumbs.
- Cool completely in the pan before slicing into squares.

Tips & Tricks
- Use high-quality chocolate for deeper flavor
- Do not overmix after adding flour to keep brownies tender
- Slightly underbake for extra fudgy texture
- Let brownies cool fully for clean slices
- Add chocolate chunks or nuts for variation
Details
- Prep Time: 15 minutes
- Cook Time: 40 minutes
- Total Time: 55 minutes
- Yield: 9–12 brownies
- Category: Dessert
- Method: Baking
- Cuisine: American
- Difficulty: Easy
- Dietary: Vegetarian, halal-friendly

Notes
- You can substitute dark chocolate for a richer taste
- Add espresso powder to enhance chocolate flavor
- Sprinkle sea salt on top before baking for contrast
Nutrition (Approximate per serving)
- Calories: 320
- Protein: 4g
- Carbs: 38g
- Fat: 18g
FAQ
Can I taste the sourdough in Easy Sourdough Discard Brownies?
No, it adds depth but not a strong sour flavor.
Can I use active starter instead of discard?
Yes, both work well in this recipe.
Why are my brownies cakey instead of fudgy?
Overbaking or too much flour can cause this.
Can I freeze these brownies?
Yes, they freeze well for up to 2 months.
How do I make them extra fudgy?
Slightly underbake and use more chocolate than cocoa.
Storage
- Room Temperature: Up to 3 days in an airtight container
- Refrigerate: Up to 1 week
- Freeze: Up to 2 months
- Reheat: Microwave for 10–15 seconds for a gooey texture

Similar Recipes

Easy Sourdough Discard Brownies
Ingredients
For the chocolate blend:
- 2 teaspoons vanilla extract
- 12 oz semi-sweet chocolate chips
- ½ cup unsalted butter
- ½ cup cocoa powder
For the wet ingredients:
- ½ cup sourdough starter discard
- ½ cup packed brown sugar
- 1 cup granulated sugar
- 1 egg yolk
- 2 large eggs
For the dry ingredients:
- 1 cup all-purpose flour
- 1 teaspoon salt
Instructions
- Preheat oven to 350°F (176°C) and line a 9×9-inch baking dish with parchment paper.
- In a saucepan over low heat, melt butter. Add chocolate chips, cocoa powder, and vanilla extract. Stir until smooth and fully melted. Let cool slightly.
- In a large bowl, beat eggs, egg yolk, brown sugar, and granulated sugar for 7–10 minutes until light and creamy.
- Add sourdough discard and the cooled chocolate mixture. Mix on low speed until combined.
- Gently fold in flour and salt until just incorporated. The batter will be thick.
- Pour batter into prepared pan and smooth the top.
- Bake Easy Sourdough Discard Brownies for 35–40 minutes, until a toothpick inserted shows moist crumbs.
- Cool completely in the pan before slicing into squares.
- Tips & Tricks
Notes
- You can substitute dark chocolate for a richer taste
Conclusion
Easy Sourdough Discard Brownies are the perfect blend of indulgence and practicality. With their rich chocolate flavor and chewy texture, they’re a must-try recipe that transforms simple ingredients into a truly satisfying dessert.

