Sourdough Discard Brownies with Walnut Crunch

Highlighted under: Baking & Desserts

Delight in the rich, fudgy goodness of these Sourdough Discard Brownies, enhanced by a satisfying walnut crunch.

Emily

Created by

Emily

Last updated on 2025-12-27T21:02:27.503Z

These Sourdough Discard Brownies with Walnut Crunch are not only a delicious way to use up your sourdough starter but also offer a unique twist on the classic brownie. The walnuts add a delightful crunch while the sourdough gives a subtle tang that elevates the chocolate flavor. Perfect for sharing with friends or indulging on your own!

Why You Will Love This Recipe

  • Rich chocolate flavor enhanced by sourdough
  • Crunchy walnuts for added texture
  • Easy to make with leftover sourdough discard

The Magic of Sourdough Discard

Sourdough discard is often overlooked, but it holds incredible potential in baking. Utilizing this byproduct not only reduces waste but also adds a unique depth of flavor to your recipes. In brownies, the tanginess of the sourdough beautifully balances the sweetness of the sugar, creating a complex taste that will leave your taste buds craving more. By incorporating sourdough discard into your brownies, you’re not just creating a delicious treat; you’re also making a sustainable choice in the kitchen.

Beyond flavor, sourdough discard contributes to a moist texture, which is essential for achieving that fudgy brownie consistency. The natural acidity in the sourdough helps to tenderize the baked goods, resulting in a rich, decadent brownie that is sure to impress. Whether you’re a seasoned baker or a novice, using sourdough discard is a fun and rewarding way to enhance your baking game.

Walnuts: A Nutty Delight

Walnuts are more than just a delicious addition to these brownies; they offer numerous health benefits as well. Packed with omega-3 fatty acids, antioxidants, and essential vitamins, walnuts contribute to heart health and may even improve brain function. Their crunchy texture provides a delightful contrast to the soft, fudgy brownie, making each bite a satisfying experience.

Toasting the walnuts before adding them to the batter can elevate their flavor even further. Simply spread them on a baking sheet and toast in the oven for a few minutes until they are fragrant. This step will enhance their nuttiness and provide an extra layer of richness to your brownies. Not only do walnuts add nutritional value, but they also make your Sourdough Discard Brownies a gourmet treat that friends and family will rave about.

Serving Suggestions

These Sourdough Discard Brownies are delicious on their own, but there are many ways to serve them for an elevated dessert experience. Consider pairing them with a scoop of vanilla ice cream for a classic combination that never disappoints. The warmth of the brownies against the cold ice cream creates a delightful contrast that is sure to please everyone at the table.

For a more decadent dessert, drizzle some chocolate ganache over the top before serving. The rich, glossy finish adds an indulgent touch and makes your brownies look even more enticing. You can also dust them with powdered sugar for a simple yet elegant presentation. No matter how you choose to serve them, these brownies are guaranteed to be a hit!

Ingredients

Brownie Ingredients

  • 1 cup sourdough discard
  • 1 cup granulated sugar
  • 1/2 cup unsalted butter, melted
  • 2 large eggs
  • 1 teaspoon vanilla extract
  • 1/2 cup all-purpose flour
  • 1/2 cup unsweetened cocoa powder
  • 1/4 teaspoon salt
  • 1/2 cup chopped walnuts

Mix all ingredients until well combined.

Instructions

Preheat the Oven

Preheat your oven to 350°F (175°C) and grease a 9x9-inch baking pan.

Mix Wet Ingredients

In a large bowl, combine the sourdough discard, sugar, melted butter, eggs, and vanilla extract. Mix until smooth.

Combine Dry Ingredients

In another bowl, whisk together the flour, cocoa powder, and salt.

Combine Mixtures

Gradually fold the dry ingredients into the wet ingredients until just combined. Do not overmix.

Add Walnuts

Fold in the chopped walnuts.

Bake

Pour the batter into the prepared baking pan and bake for 25 minutes or until a toothpick comes out clean.

Cool and Serve

Allow the brownies to cool in the pan before cutting into squares. Enjoy!

Serve with a scoop of ice cream for an extra treat!

Tips for Perfect Brownies

To ensure your brownies are perfectly fudgy, avoid overmixing the batter once the dry ingredients are added. Overmixing can lead to a cakey texture, which isn’t what we want in a rich brownie. Mix until just combined for the best results.

Another helpful tip is to use room temperature ingredients. This helps to create a smoother batter and ensures even baking. If you forgot to take your butter or eggs out of the fridge, just microwave the butter for a few seconds (don’t melt it completely) and let the eggs sit in warm water for a few minutes.

Storing Your Brownies

These brownies can be stored in an airtight container at room temperature for up to five days. If you want to keep them fresh for longer, consider freezing them. Wrap each brownie individually in plastic wrap and then place them in a zip-top freezer bag. They can last up to three months in the freezer.

When you’re ready to enjoy your frozen brownies, simply remove them from the freezer and let them thaw at room temperature for about 30 minutes. You can also pop them in the microwave for a few seconds to warm them up, restoring that fresh-baked quality.

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Questions About Recipes

→ Can I use all-purpose flour instead of whole wheat?

Yes, all-purpose flour works great for this recipe.

→ What can I substitute for walnuts?

You can use pecans or omit the nuts altogether if desired.

→ How should I store leftovers?

Store brownies in an airtight container at room temperature for up to 3 days.

→ Can I freeze these brownies?

Yes, you can freeze the brownies for up to 3 months. Thaw before serving.

Sourdough Discard Brownies with Walnut Crunch

Delight in the rich, fudgy goodness of these Sourdough Discard Brownies, enhanced by a satisfying walnut crunch.

Prep Time20 minutes
Cooking Duration25 minutes
Overall Time45 minutes

Created by: Emily

Recipe Type: Baking & Desserts

Skill Level: Intermediate

Final Quantity: 12 brownies

What You'll Need

Brownie Ingredients

  1. 1 cup sourdough discard
  2. 1 cup granulated sugar
  3. 1/2 cup unsalted butter, melted
  4. 2 large eggs
  5. 1 teaspoon vanilla extract
  6. 1/2 cup all-purpose flour
  7. 1/2 cup unsweetened cocoa powder
  8. 1/4 teaspoon salt
  9. 1/2 cup chopped walnuts

How-To Steps

Step 01

Preheat your oven to 350°F (175°C) and grease a 9x9-inch baking pan.

Step 02

In a large bowl, combine the sourdough discard, sugar, melted butter, eggs, and vanilla extract. Mix until smooth.

Step 03

In another bowl, whisk together the flour, cocoa powder, and salt.

Step 04

Gradually fold the dry ingredients into the wet ingredients until just combined. Do not overmix.

Step 05

Fold in the chopped walnuts.

Step 06

Pour the batter into the prepared baking pan and bake for 25 minutes or until a toothpick comes out clean.

Step 07

Allow the brownies to cool in the pan before cutting into squares. Enjoy!

Nutritional Breakdown (Per Serving)

  • Calories: 380 kcal
  • Total Fat: 26g
  • Saturated Fat: 15g
  • Cholesterol: 195mg
  • Sodium: 85mg
  • Total Carbohydrates: 32g
  • Dietary Fiber: 3g
  • Sugars: 24g
  • Protein: 6g