Easy Sourdough Discard Brownies

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

Fudgy brownies with shiny tops and dense chocolate crumb on parchment paper.
Deep chocolate sourdough brownies

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

  1. Preheat oven to 350°F (176°C) and line a 9×9-inch baking dish with parchment paper.
  2. 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.
  3. In a large bowl, beat eggs, egg yolk, brown sugar, and granulated sugar for 7–10 minutes until light and creamy.
  4. Add sourdough discard and the cooled chocolate mixture. Mix on low speed until combined.
  5. Gently fold in flour and salt until just incorporated. The batter will be thick.
  6. Pour batter into prepared pan and smooth the top.
  7. Bake Easy Sourdough Discard Brownies for 35–40 minutes, until a toothpick inserted shows moist crumbs.
  8. Cool completely in the pan before slicing into squares.
Close-up of rich chocolate brownies made with sourdough discard showing moist interior.
Rich chocolate brownies with crackly tops

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
Easy Sourdough Discard Brownies cut into squares with fudgy texture and crackly tops.
Fudgy sourdough discard brownies

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
Homemade sourdough brownies stacked on a plate with deep chocolate color.
Easy homemade brownie squares

Similar Recipes

Easy Sourdough Discard Brownies

Rich and fudgy brownies made with sourdough discard.
Prep Time 15 minutes
Course Dessert
Cuisine American

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.

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