Sourdough Discard Brownies One Bowl

Highlighted under: Sugar & Spice Kitchen

I love making the most out of my sourdough starter, and these Sourdough Discard Brownies have quickly become a favorite in my kitchen. It feels great to create something delicious from what would otherwise go to waste. The one-bowl method makes these brownies incredibly easy and straightforward, allowing the rich chocolate flavor to shine without any fuss. Plus, they’re wonderfully moist, thanks to the sourdough discard, offering a unique twist on traditional brownies that everyone raves about.

Felicity Grant

Created by

Felicity Grant

Last updated on 2026-03-05T07:09:54.037Z

When I first decided to use sourdough discard in my brownies, I wasn’t sure what to expect. The results blew me away! These brownies turned out incredibly moist and rich, with a depth of flavor that I had never achieved before. I quickly learned that the acid from the sourdough helps balance the sweetness of the chocolate, making each bite truly irresistible.

Another tip I discovered is to mix the ingredients by hand rather than using an electric mixer. This allows me to control the mixing process better, ensuring the brownies have the perfect fudgy texture. It’s become a cherished recipe in our household, especially when I want to impress guests without spending hours in the kitchen!

You'll Love These Brownies Because

  • Rich chocolate flavor balanced by tangy sourdough
  • Fudgy texture that’s absolutely irresistible
  • Quick and easy one-bowl preparation
  • Uses leftover sourdough discard, reducing waste

Unlocking the Power of Sourdough Discard

Using sourdough discard in these brownies not only prevents waste but also adds a mild tanginess that contrasts beautifully with the rich chocolate. The acidity in the sourdough helps to balance the sweetness of the sugar, enhancing the overall flavor profile. This is what makes these brownies stand out compared to traditional recipes, where all the ingredients can sometimes feel too sweet or cloying.

If you’re wondering why it’s essential to use unfed sourdough starter, it’s because the wild yeast and bacteria are still active. This contributes to the brownies’ moisture and airy texture. Just be sure your sourdough discard is fresh and has been recently stirred, as older discard may yield a denser brownie.

Mastering the One-Bowl Method

One of the biggest advantages of this recipe is the one-bowl method, which simplifies cleanup and preparation. To ensure you're getting the best consistency, mix the melted butter and sugar until silky before adding in the eggs. This step helps to incorporate air into the batter, leading to a lighter brownie texture without the need for intensive whisking.

When combining wet and dry ingredients, be careful not to over-mix; you want to achieve just a homogenous batter. Over-mixing can lead to tough brownies. Remember, a few small lumps are perfectly fine—they will bake out during the cooking process. This method saves time while still producing rich and delicious results.

Serving and Storage Tips

Once your brownies have cooled, consider how you want to serve them. They can be enjoyed plain, or you can elevate the experience by dusting powdered sugar on top or serving with a scoop of ice cream and a drizzle of chocolate sauce. For a nutty twist, try folding in chopped walnuts or pecans before baking. This adds both texture and flavor that pairs wonderfully with the chocolate.

If you have leftovers, store your brownies in an airtight container at room temperature for up to four days. To extend freshness, you can freeze them for several months. When ready to enjoy, simply thaw them overnight in the refrigerator or microwave for a few seconds. This way, your delicious brownies can be savored over time!

Ingredients

Gather your ingredients together before getting started to make the process even smoother.

Ingredients for Brownies

  • 1 cup sourdough discard (unfed)
  • 1/2 cup unsalted butter, melted
  • 1 cup granulated sugar
  • 2 large eggs
  • 1 teaspoon vanilla extract
  • 1/2 cup all-purpose flour
  • 1/2 cup unsweetened cocoa powder
  • 1/4 teaspoon salt
  • 1/4 teaspoon baking soda
  • 1 cup chocolate chips (optional)

Make sure to measure your ingredients accurately for the best results!

Instructions

Follow these steps closely, and you’ll have rich, fudgy brownies in no time!

Preheat the Oven

Preheat your oven to 350°F (175°C) and grease a 9x9 inch baking pan or line it with parchment paper.

Mix Ingredients

In a large mixing bowl, combine the sourdough discard, melted butter, and sugar. Mix until well blended.

Add Eggs and Vanilla

Add the eggs one at a time, mixing well after each addition. Stir in the vanilla extract until combined.

Combine Dry Ingredients

In a separate bowl, whisk together the flour, cocoa powder, salt, and baking soda. Gradually add these dry ingredients to the wet mixture, stirring just until combined.

Add Chocolate Chips

If using, fold in the chocolate chips for an extra indulgent touch.

Bake

Pour the brownie batter into the prepared baking pan and spread it evenly. Bake for 30 minutes, or until a toothpick inserted in the center comes out with a few moist crumbs.

Cool and Serve

Let the brownies cool in the pan for at least 10 minutes before slicing into squares and serving. Enjoy!

Don’t forget to share your brownies with family and friends!

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Pro Tips

  • For an extra layer of flavor, add a sprinkle of sea salt on top of the brownies just before baking. This enhances the chocolate and adds a delightful contrast.

Ingredient Substitutions

Feel free to adapt the sugar levels depending on your sweetness preference. For a healthier twist, substitute half of the granulated sugar with coconut sugar or a sugar alternative suitable for baking, such as stevia or erythritol. Keep in mind that this may slightly alter the texture and baking time.

If you're looking for a dairy-free option, substitute the unsalted butter with melted coconut oil or a plant-based butter alternative. These options maintain the moisture in the brownies and provide a subtle flavor that complements the chocolate. Just remember to use the same quantity as called for in the recipe.

Scaling the Recipe

If you're planning to serve a larger crowd, this brownie recipe can easily be doubled! Simply use a larger baking dish, such as a 9x13 inch pan, and increase the baking time by 5 to 10 minutes. Always check for doneness with a toothpick; you want a few moist crumbs to cling to it without wet batter.

Conversely, if you're only craving a small batch, you can halve the ingredients and bake them in a smaller pan, like an 8x8 inch dish. Make sure to keep an eye on them as they bake, as the reduced size may lead to a shorter cook time.

Questions About Recipes

→ Can I use fed sourdough starter instead of discard?

While you can, using unfed sourdough discard works best for this recipe as it maintains the tangy flavor.

→ How should I store the brownies?

Store the brownies in an airtight container at room temperature for up to 4 days, or freeze for longer storage.

→ Can I substitute gluten-free flour?

Yes, you can substitute gluten-free all-purpose flour for a gluten-free version of these brownies.

→ What can I add for extra flavor?

Consider adding nuts, a swirl of peanut butter, or a pinch of espresso powder to enhance the chocolate flavor.

Sourdough Discard Brownies One Bowl

I love making the most out of my sourdough starter, and these Sourdough Discard Brownies have quickly become a favorite in my kitchen. It feels great to create something delicious from what would otherwise go to waste. The one-bowl method makes these brownies incredibly easy and straightforward, allowing the rich chocolate flavor to shine without any fuss. Plus, they’re wonderfully moist, thanks to the sourdough discard, offering a unique twist on traditional brownies that everyone raves about.

Prep Time10 minutes
Cooking Duration30 minutes
Overall Time40 minutes

Created by: Felicity Grant

Recipe Type: Sugar & Spice Kitchen

Skill Level: Easy

Final Quantity: 12 brownies

What You'll Need

Ingredients for Brownies

  1. 1 cup sourdough discard (unfed)
  2. 1/2 cup unsalted butter, melted
  3. 1 cup granulated sugar
  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. 1/4 teaspoon baking soda
  10. 1 cup chocolate chips (optional)

How-To Steps

Step 01

Preheat your oven to 350°F (175°C) and grease a 9x9 inch baking pan or line it with parchment paper.

Step 02

In a large mixing bowl, combine the sourdough discard, melted butter, and sugar. Mix until well blended.

Step 03

Add the eggs one at a time, mixing well after each addition. Stir in the vanilla extract until combined.

Step 04

In a separate bowl, whisk together the flour, cocoa powder, salt, and baking soda. Gradually add these dry ingredients to the wet mixture, stirring just until combined.

Step 05

If using, fold in the chocolate chips for an extra indulgent touch.

Step 06

Pour the brownie batter into the prepared baking pan and spread it evenly. Bake for 30 minutes, or until a toothpick inserted in the center comes out with a few moist crumbs.

Step 07

Let the brownies cool in the pan for at least 10 minutes before slicing into squares and serving. Enjoy!

Extra Tips

  1. For an extra layer of flavor, add a sprinkle of sea salt on top of the brownies just before baking. This enhances the chocolate and adds a delightful contrast.

Nutritional Breakdown (Per Serving)

  • Calories: 300 kcal
  • Total Fat: 15g
  • Saturated Fat: 9g
  • Cholesterol: 60mg
  • Sodium: 150mg
  • Total Carbohydrates: 35g
  • Dietary Fiber: 2g
  • Sugars: 20g
  • Protein: 4g