Sourdough Discard Brownies with Mint Frosting

Highlighted under: Whisked Delight Recipes

Indulge in these rich and fudgy brownies that cleverly use sourdough discard, topped with a refreshing mint frosting.

Emma

Created by

Emma

Last updated on 2025-12-27T21:26:27.691Z

These Sourdough Discard Brownies with Mint Frosting are not only a delicious way to use up your sourdough discard, but they also add a unique twist to the classic brownie recipe. The rich chocolate flavor pairs beautifully with the refreshing mint frosting, making them a delightful treat for any occasion.

Why You'll Love This Recipe

  • Rich chocolate flavor paired with fresh mint frosting
  • Utilizes sourdough discard, reducing waste
  • Fudgy texture that satisfies your sweet tooth
  • Perfect for celebrations or as a sweet indulgence

A Unique Twist on Classic Brownies

Brownies are a beloved treat, cherished for their rich chocolate flavor and fudgy texture. With this recipe, we take the classic brownie to new heights by incorporating sourdough discard, an ingredient that not only enhances the flavor but also reduces food waste. The sourdough adds a subtle tang that balances beautifully with the sweetness of the chocolate, creating a depth of flavor that is truly exceptional.

These brownies are perfect for any occasion, whether it's a casual family gathering or a festive celebration. Their chewy consistency makes them irresistible, and they are sure to impress both chocolate lovers and those seeking a unique twist on a traditional dessert. Plus, the addition of mint frosting elevates the experience, providing a refreshing contrast that makes each bite memorable.

Sourdough Discard: A Sustainable Ingredient

Using sourdough discard in your baking not only brings a unique flavor profile to your recipes, but it also promotes sustainable cooking practices. Every time you feed your sourdough starter, you may be left with excess that would otherwise go to waste. By incorporating it into these brownies, you're making a delicious treat while minimizing food waste, making this recipe both eco-friendly and delicious.

This approach aligns perfectly with the growing trend of sustainability in cooking and baking. Many home bakers are looking for ways to utilize every part of their ingredients, and sourdough discard is a wonderful addition to a variety of baked goods. Not only can you use it in brownies, but it can also enhance pancakes, waffles, and even muffins!

Serving and Storing Your Brownies

Once you've frosted your brownies, they can be served immediately, making them a quick and delightful dessert option. Cut them into squares and arrange them on a platter for sharing, or simply enjoy them straight from the pan. The combination of fudgy brownies and mint frosting is sure to be a hit with friends and family, leaving them asking for seconds!

For storing, keep any leftovers in an airtight container at room temperature for up to three days. If you want to prolong their freshness, consider refrigerating them for a week. You can also freeze the brownies for up to three months. Just make sure to wrap them tightly in plastic wrap and then in aluminum foil to prevent freezer burn. When you're ready to enjoy, let them thaw at room temperature before serving.

Ingredients

Brownies

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

Mint Frosting

  • 1/2 cup unsalted butter, softened
  • 2 cups powdered sugar
  • 2 tbsp milk
  • 1 tsp peppermint extract
  • Green food coloring (optional)

Mix the ingredients well to ensure a smooth batter and frosting.

Instructions

Prepare the Brownie Batter

Preheat your oven to 350°F (175°C). In a large mixing bowl, combine the melted butter and sugar. Mix well, then add the eggs and vanilla extract. Stir until smooth.

Incorporate the sourdough discard, followed by the flour, cocoa powder, and salt. Fold in the chocolate chips.

Bake the Brownies

Pour the brownie batter into a greased 9x9-inch baking pan. Bake for 25 minutes, or until a toothpick inserted in the center comes out mostly clean. Allow to cool completely before frosting.

Make the Mint Frosting

In a separate bowl, beat the softened butter until creamy. Gradually add the powdered sugar and milk, mixing until smooth. Stir in the peppermint extract and add green food coloring if desired.

Mix until well combined.

Frost the Brownies

Once the brownies have cooled, spread the mint frosting evenly over the top. Cut into squares and enjoy!

Enjoy your delicious brownies with a refreshing mint touch!

Tips for Perfect Brownies

To achieve the best texture for your brownies, be careful not to overmix the batter once you add the flour and cocoa powder. Overmixing can cause the brownies to become tough instead of soft and fudgy. Mixing just until the dry ingredients are incorporated is key to maintaining that perfect chewy texture.

Another tip is to use high-quality cocoa powder and chocolate chips. The flavor of the chocolate plays a significant role in the overall taste of the brownies, so investing in good chocolate will elevate your dessert. Dark chocolate chips can also add a rich depth that complements the sweetness of the brownies beautifully.

Customization Ideas

Feel free to customize your brownies to suit your taste preferences! Add in nuts like walnuts or pecans for added crunch, or experiment with different types of chocolate chips, such as milk chocolate or white chocolate. You can also swirl in some peanut butter or caramel to create a delightful marbled effect.

If you're a fan of different flavors, consider adding a sprinkle of sea salt on top of the brownies before baking. The slight saltiness enhances the chocolate flavor and adds a sophisticated touch to your dessert. You could also try different extracts, such as almond or vanilla, to see how they change the flavor profile.

Secondary image

Questions About Recipes

→ Can I substitute the sourdough discard?

Yes, you can use applesauce or yogurt as a substitute, but the texture and flavor may vary.

→ How do I store the brownies?

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

→ Can I freeze these brownies?

Absolutely! Wrap them tightly and freeze for up to 3 months. Thaw in the refrigerator before serving.

→ What can I use instead of peppermint extract?

You can use vanilla extract for a different flavor, or leave the frosting plain for a classic taste.

Sourdough Discard Brownies with Mint Frosting

Indulge in these rich and fudgy brownies that cleverly use sourdough discard, topped with a refreshing mint frosting.

Prep Time15 minutes
Cooking Duration25 minutes
Overall Time40 minutes

Created by: Emma

Recipe Type: Whisked Delight Recipes

Skill Level: Intermediate

Final Quantity: 12 brownies

What You'll Need

Brownies

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

Mint Frosting

  1. 1/2 cup unsalted butter, softened
  2. 2 cups powdered sugar
  3. 2 tbsp milk
  4. 1 tsp peppermint extract
  5. Green food coloring (optional)

How-To Steps

Step 01

Preheat your oven to 350°F (175°C). In a large mixing bowl, combine the melted butter and sugar. Mix well, then add the eggs and vanilla extract. Stir until smooth. Incorporate the sourdough discard, followed by the flour, cocoa powder, and salt. Fold in the chocolate chips.

Step 02

Pour the brownie batter into a greased 9x9-inch baking pan. Bake for 25 minutes, or until a toothpick inserted in the center comes out mostly clean. Allow to cool completely before frosting.

Step 03

In a separate bowl, beat the softened butter until creamy. Gradually add the powdered sugar and milk, mixing until smooth. Stir in the peppermint extract and add green food coloring if desired. Mix until well combined.

Step 04

Once the brownies have cooled, spread the mint frosting evenly over the top. Cut into squares and 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