Sourdough Discard Brownies with Mint Frosting

Highlighted under: Golden Crust & Sweet Cravings

Enjoy these rich and fudgy brownies made with sourdough discard, topped with a refreshing mint frosting.

Sandra

Created by

Sandra

Last updated on 2025-12-27T18:19:27.418Z

These Sourdough Discard Brownies are a delicious way to use up leftover sourdough starter. The addition of mint frosting adds a refreshing twist that complements the rich chocolate flavor perfectly.

Why You Will Love This Recipe

  • Rich chocolate flavor paired with fresh mint
  • Fudgy texture that satisfies your sweet tooth
  • An innovative way to use sourdough discard

The Magic of Sourdough Discard

Sourdough discard can often be an afterthought, but it is a treasure trove of flavor and texture. Instead of tossing it away, why not use it to create something delicious? This recipe for brownies is a perfect example of how to transform what might otherwise be waste into a decadent dessert. The sourdough adds a unique tang and moisture that elevates the traditional brownie, making them rich and fudgy.

By incorporating sourdough discard into your baking, you not only reduce food waste but also enhance the nutritional profile of your treats. Sourdough is packed with probiotics and can improve digestion. So, while you indulge in these brownies, you can feel good knowing you're making a sustainable choice.

Why Mint and Chocolate Are a Perfect Pair

Mint and chocolate have long been celebrated as a classic flavor combination. The cool, refreshing taste of mint perfectly balances the rich, deep flavors of chocolate, creating a harmonious blend that tantalizes the taste buds. Whether it's in desserts, candies, or beverages, this pairing has stood the test of time for a reason.

In these brownies, the mint frosting adds a delightful contrast to the fudgy base. The sweetness of the frosting enhances the chocolate flavor while providing a refreshing finish. This dynamic duo not only looks appealing but also delivers a multi-layered taste experience that will leave your guests asking for the recipe.

Perfecting Your Brownie Baking Skills

Baking brownies may seem straightforward, but there are a few tips to ensure they turn out perfectly every time. First, use high-quality cocoa powder for the richest flavor. Second, be careful not to overmix the batter; mixing just until combined will help maintain that fudgy texture we all love. Lastly, consider using a toothpick to check for doneness; you want moist crumbs, not a clean pick.

Letting the brownies cool completely before frosting is crucial. This allows the texture to set, making them easier to cut and serve. If you can't wait, try chilling them in the fridge for a bit. The chilled brownies will also taste divine with the mint frosting, offering a refreshing treat on a hot day.

Ingredients

Gather these ingredients to make your brownies and mint frosting.

Brownies

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

Mint Frosting

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

Make sure to have these ingredients ready for the mint frosting.

Instructions

Follow these steps to create your delicious brownies topped with mint frosting.

Prepare the Brownie Batter

  1. Preheat your oven to 350°F (175°C) and grease a 9x9 inch baking pan.
  2. In a bowl, whisk together flour, cocoa powder, baking powder, and salt.
  3. In another bowl, mix melted butter and sugar until smooth. Add eggs and vanilla, then stir in sourdough discard.
  4. Combine the wet and dry ingredients until just mixed. Pour into the prepared pan.

Bake the Brownies

  1. Bake for 25-30 minutes or until a toothpick comes out with moist crumbs.
  2. Remove from the oven and let cool completely in the pan.

Make the Mint Frosting

  1. In a mixing bowl, beat the softened butter until creamy.
  2. Gradually add powdered sugar and milk, mixing until smooth.
  3. Add peppermint extract and green food coloring, mixing until well combined.

Frost the Brownies

  1. Once the brownies are cool, spread the mint frosting evenly on top.
  2. Cut into squares and serve.

Enjoy your delicious brownies with a minty twist!

Storing and Serving Suggestions

These Sourdough Discard Brownies can be stored in an airtight container at room temperature for up to five days. If you want to keep them longer, consider freezing them. Wrap individual brownies in plastic wrap and then place them in a freezer-safe bag. They can last up to three months in the freezer, making them a great make-ahead dessert.

When serving, consider pairing these brownies with a scoop of vanilla ice cream or a dollop of whipped cream. The creaminess of the ice cream complements the rich flavors of the brownies, while the mint frosting adds an extra touch of freshness. Garnishing with additional mint leaves can also elevate the presentation.

Variations to Try

Feel free to experiment with different flavorings in the frosting. Try adding a splash of orange extract for a citrus twist or a hint of espresso powder in the brownie batter for a mocha flavor. You can also fold in chocolate chips or nuts to the brownie batter for added texture and taste.

For a festive touch, consider adding crushed peppermint candies to the mint frosting. This will not only enhance the minty flavor but also add a delightful crunch. These variations can make your brownies even more special, perfect for any occasion or celebration.

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Questions About Recipes

→ Can I use a different type of frosting?

Yes, feel free to experiment with other frosting flavors!

→ How should I store the brownies?

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

→ Can I freeze the brownies?

Yes, you can freeze them for up to 3 months. Just wrap them tightly.

→ Is the sourdough discard necessary for this recipe?

While it adds unique flavor and texture, you can substitute with an equal amount of applesauce or yogurt.

Sourdough Discard Brownies with Mint Frosting

Enjoy these rich and fudgy brownies made with sourdough discard, topped with a refreshing mint frosting.

Prep Time15 minutes
Cooking Duration30 minutes
Overall Time45 minutes

Created by: Sandra

Recipe Type: Golden Crust & Sweet Cravings

Skill Level: Intermediate

Final Quantity: 16 brownies

What You'll Need

Brownies

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

Mint Frosting

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

How-To Steps

Step 01

  1. Preheat your oven to 350°F (175°C) and grease a 9x9 inch baking pan.
  2. In a bowl, whisk together flour, cocoa powder, baking powder, and salt.
  3. In another bowl, mix melted butter and sugar until smooth. Add eggs and vanilla, then stir in sourdough discard.
  4. Combine the wet and dry ingredients until just mixed. Pour into the prepared pan.

Step 02

  1. Bake for 25-30 minutes or until a toothpick comes out with moist crumbs.
  2. Remove from the oven and let cool completely in the pan.

Step 03

  1. In a mixing bowl, beat the softened butter until creamy.
  2. Gradually add powdered sugar and milk, mixing until smooth.
  3. Add peppermint extract and green food coloring, mixing until well combined.

Step 04

  1. Once the brownies are cool, spread the mint frosting evenly on top.
  2. Cut into squares and serve.

Nutritional Breakdown (Per Serving)

  • Calories: 250 kcal
  • Total Fat: 12g
  • Saturated Fat: 7g
  • Cholesterol: 40mg
  • Sodium: 80mg
  • Total Carbohydrates: 34g
  • Dietary Fiber: 2g
  • Sugars: 18g
  • Protein: 3g