Crispy Sourdough Discard Brownies

Highlighted under: Sweet Homemade Goodness

I love experimenting with different ingredients in my baking, and my latest endeavor led me to create these Crispy Sourdough Discard Brownies. Combining the rich flavors of chocolate with the unique tang of sourdough discard, these brownies are not just an ingenious way to reduce waste, but they also add a delightful texture and flavor profile. The crispy edges and fudgy center have made them a new favorite in my household. It’s the perfect solution for those who want to enjoy a treat while being resourceful in the kitchen!

Amelia Grant

Created by

Amelia Grant

Last updated on 2026-01-24T09:10:12.762Z

When I first thought about using sourdough discard in brownies, I was excited but also a little nervous. To make sure I achieved the right texture, I tested various ratios of flour to sourdough, and after a few tries, I found the perfect balance. The sourdough adds a subtle depth of flavor that elevates the chocolate without overpowering it.

One of the most important tips I learned during this process was to pay attention to the baking time. Getting the right mix of crispy edges and a soft center is essential, so I recommend checking for doneness a few minutes before the timer goes off. Trust your instincts and don’t be afraid to make adjustments!

Why You Will Love These Brownies

  • The unique flavor from sourdough adds complexity to the chocolate.
  • Crispy edges create a perfect contrast to the soft, gooey center.
  • An eco-friendly way to use sourdough discard without sacrificing taste.

Understanding Sourdough Discard

Sourdough discard is the leftover portion of your sourdough starter after you've fed it. Using it in brownies not only adds a distinct tangy flavor but also contributes to their unique fudgy texture. The acidity in the sourdough interacts with the baking soda and powder, helping to create a lovely rise while maintaining moisture. If you're worried about the discard impacting the flavor, rest assured that the chocolate and sugar balance it out beautifully.

In addition to adding flavor complexity, sourdough discard helps reduce food waste in a delicious way. Instead of tossing out what could be a usable ingredient, you can transform your leftover starter into a delightful chocolate treat. This practice supports eco-friendly cooking and encourages creativity in the kitchen. Just measure by weight to ensure accuracy; about one cup (240 grams) of discard is ideal for this recipe.

Perfecting the Baking Process

Baking the brownies at 350°F (175°C) is key to achieving that perfect crispy edge. Keep an eye on them during the last few minutes—visual cues like a puffed center and slightly cracked top indicate doneness. A toothpick test is essential, but look for a few moist crumbs on the stick instead of wet batter; this ensures your brownies are fudge-like while still being set.

Be careful not to overmix the batter once the dry ingredients are added. Gently folding the sourdough discard and chocolate chips preserves air in the batter, contributing to the desired texture. If you overmix, the brownies could turn tough. If you're making a double batch, use a larger pan and adjust the baking time, checking for doneness about five minutes earlier than the standard recipe.

Serving and Storing Tips

Allowing the brownies to cool in the pan for at least ten minutes ensures they firm up enough for clean cuts. For serving, you might consider pairing them with a scoop of vanilla ice cream or a drizzle of caramel sauce to enhance the rich chocolate flavor. Garnishing with sea salt adds a delightful contrast and accentuates the chocolate notes.

If you're not serving them immediately, store the brownies in an airtight container at room temperature for up to three days. For longer storage, wrap them tightly and freeze for up to three months. To enjoy, simply thaw at room temperature or reheat briefly in the microwave for that fresh-from-the-oven experience.

Ingredients

Gather the following ingredients to make your Crispy Sourdough Discard Brownies:

Brownie Ingredients

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

Now that you have all your ingredients, let’s move on to the preparation!

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Instructions

Follow these steps to bake your brownies:

Preheat the Oven

Preheat your oven to 350°F (175°C) and grease a 9x13 inch baking pan.

Mix Wet Ingredients

In a large mixing bowl, combine melted butter and sugar, then add in eggs and vanilla extract, whisking until combined.

Combine Dry Ingredients

In a separate bowl, mix together flour, cocoa powder, baking powder, and salt.

Combine Mixtures

Gradually stir the dry ingredients into the wet ingredients until just combined. Then fold in the sourdough discard and chocolate chips.

Bake

Pour the batter into the prepared pan and spread it evenly. Bake for 25 minutes or until a toothpick comes out with a few moist crumbs.

Cool and Serve

Allow the brownies to cool in the pan for at least 10 minutes before cutting into squares and serving.

Enjoy your delicious and resourceful brownies!

Pro Tips

  • For an extra indulgence, consider adding a sprinkle of sea salt on top before baking or a swirl of peanut butter into the batter before it sets in the pan.

Ingredient Variations

If you're looking for an alternative to granulated sugar, consider using brown sugar to introduce a deeper, molasses-like flavor that complements the chocolate beautifully. Alternatively, for a healthier option, coconut sugar can be used, although it may slightly alter the texture and make the brownies less sweet, so adjust according to taste.

For an extra layer of texture, try adding nuts like walnuts or pecans. Chopped nuts can be folded into the batter along with chocolate chips. However, if you're looking for a nut-free version, make sure to avoid cross-contamination if you have allergies.

Troubleshooting Common Issues

If your brownies spread too much during baking, it often means the butter was too warm when mixed or the batter was overmixed after adding the flour. To counter this, ensure the melted butter has cooled slightly before mixing, and mix gently. Alternatively, chilling the batter for about 30 minutes before baking can help stabilize it.

Should the brownies come out too dry, this usually indicates they were overbaked. It’s vital to start checking for doneness at the minimum baking time to prevent this. Each oven is different, so knowing your oven's quirks can save you from dry brownies.

Questions About Recipes

→ Can I use any type of sourdough discard?

Yes, any sourdough discard will work, but avoid using overly liquid or runny discard.

→ What if I don’t have sourdough discard?

You can substitute it with an equal amount of yogurt or buttermilk, but it may not have the same flavor contribution.

→ How should I store the leftover brownies?

Store them in an airtight container at room temperature for up to 3 days or refrigerate for up to a week.

→ Can I freeze these brownies?

Yes, these brownies freeze well. Wrap them tightly in plastic wrap and freeze for up to 2 months.

Crispy Sourdough Discard Brownies

I love experimenting with different ingredients in my baking, and my latest endeavor led me to create these Crispy Sourdough Discard Brownies. Combining the rich flavors of chocolate with the unique tang of sourdough discard, these brownies are not just an ingenious way to reduce waste, but they also add a delightful texture and flavor profile. The crispy edges and fudgy center have made them a new favorite in my household. It’s the perfect solution for those who want to enjoy a treat while being resourceful in the kitchen!

Prep Time15 minutes
Cooking Duration25 minutes
Overall Time40 minutes

Created by: Amelia Grant

Recipe Type: Sweet Homemade Goodness

Skill Level: Intermediate

Final Quantity: 12 brownies

What You'll Need

Brownie Ingredients

  1. 1 cup unsalted butter, melted
  2. 2 cups granulated sugar
  3. 4 large eggs
  4. 1 teaspoon vanilla extract
  5. 1 cup all-purpose flour
  6. 1 cup sourdough discard
  7. 1 cup unsweetened cocoa powder
  8. 1 teaspoon baking powder
  9. 1/2 teaspoon salt
  10. 1 cup chocolate chips

How-To Steps

Step 01

Preheat your oven to 350°F (175°C) and grease a 9x13 inch baking pan.

Step 02

In a large mixing bowl, combine melted butter and sugar, then add in eggs and vanilla extract, whisking until combined.

Step 03

In a separate bowl, mix together flour, cocoa powder, baking powder, and salt.

Step 04

Gradually stir the dry ingredients into the wet ingredients until just combined. Then fold in the sourdough discard and chocolate chips.

Step 05

Pour the batter into the prepared pan and spread it evenly. Bake for 25 minutes or until a toothpick comes out with a few moist crumbs.

Step 06

Allow the brownies to cool in the pan for at least 10 minutes before cutting into squares and serving.

Extra Tips

  1. For an extra indulgence, consider adding a sprinkle of sea salt on top before baking or a swirl of peanut butter into the batter before it sets in the pan.

Nutritional Breakdown (Per Serving)

  • Calories: 250 kcal
  • Total Fat: 14g
  • Saturated Fat: 8g
  • Cholesterol: 75mg
  • Sodium: 90mg
  • Total Carbohydrates: 28g
  • Dietary Fiber: 2g
  • Sugars: 20g
  • Protein: 3g