Sourdough Mint Chocolate Brownies

Highlighted under: Classic Baking Recipes

I absolutely adore the rich and decadent flavors of brownies, and my sourdough mint chocolate brownies truly elevate this classic treat. The addition of sourdough starter adds depth and a slight tang that wonderfully balances the sweetness of chocolate and the refreshing hints of mint. When baked, these brownies boast a fudgy texture that's hard to resist. I love serving them warm with a scoop of vanilla ice cream, making for the perfect after-dinner indulgence. You’ll find that they disappear quickly at gatherings!

Emily

Created by

Emily

Last updated on 2026-01-27T09:13:27.374Z

When I first experimented with sourdough in brownie recipes, I was ecstatic to discover how it enhances the flavor and moisture without being overpowering. The slight tang from the sourdough creates a perfect balance that pairs beautifully with the rich chocolate. Each bite is a delightful experience!

I recommend using high-quality chocolate and fresh mint extract for the best flavor. If you're feeling adventurous, try adding chopped walnuts or a layer of mint frosting for an extra touch of indulgence. You won’t regret it!

Why You'll Love These Brownies

  • Rich chocolate flavor paired with fresh mint essence
  • Fudgy texture that is irresistibly satisfying
  • An unexpected twist on a classic favorite

The Role of Sourdough in Brownies

Using sourdough starter in brownies might seem unconventional, but it plays a crucial role in enhancing both flavor and texture. The natural fermentation process adds a tangy depth that complements the richness of the chocolate. Not only does it contribute to a fudgier brownie, but the acidity helps to balance the sweetness, making every bite more complex. If you’re using discard, there’s no need to worry about the final taste; it’s an excellent way to incorporate leftovers into a delightful treat.

Moreover, sourdough starter lends moisture to the brownies, keeping them fudgy and fresh for longer. If you're concerned about the tang being too pronounced, rest assured that the chocolate and mint will dominate the flavor profile. If you're looking to experiment, you can reduce the amount of sugar slightly to let the sourdough shine through more brightly.

Incorporating Mint Flavor

Mint extract is key to achieving that refreshing, signature flavor in these brownies. While two teaspoons provide a robust minty profile, you can adjust the quantity to match your preferences. If you prefer a lighter touch, start with one teaspoon and taste the batter before baking, as the flavor will intensify after baking. Alternatively, you could use fresh mint by steeping chopped mint leaves in the melted butter before mixing it with the sugars to create a fresh minty base.

It’s important to incorporate the mint extract properly to ensure an even distribution throughout the batter. Stirring it into the wet ingredients before combining with the dry mix will help distribute the oils evenly. This not only ensures that every bite offers a balanced flavor but also enhances the overall experience, especially when paired with a scoop of ice cream.

Serving and Storing Tips

These brownies are best served warm, fresh out of the oven, with a scoop of vanilla ice cream melting atop each square. The contrast of the warm, fudgy brownie and the cool creaminess of the ice cream is simply heavenly. For an extra touch, sprinkle some chopped fresh mint leaves or a drizzle of chocolate sauce over the top just before serving to elevate the dessert to gourmet status.

If you have leftovers, store the brownies in an airtight container at room temperature for up to 3 days. You can also refrigerate them for longer freshness, but make sure to let them come to room temperature or warm them slightly in the microwave before enjoying. Freezing is an option too; individually wrap brownies in plastic wrap and place them in a freezer-safe bag for up to 2 months. Thaw overnight in the refrigerator when you're ready to devour.

Ingredients

For the Brownies

  • 1 cup unsalted butter, melted
  • 1 cup granulated sugar
  • 1/2 cup packed light brown sugar
  • 1 cup sourdough starter (discard is fine)
  • 2 large eggs
  • 2 teaspoons peppermint extract
  • 1 cup all-purpose flour
  • 1/2 cup unsweetened cocoa powder
  • 1/2 teaspoon baking powder
  • 1/4 teaspoon salt
  • 1 cup semi-sweet chocolate chips

Instructions

Directions

Preheat and Prepare

Preheat your oven to 350°F (175°C) and grease a 9x13 inch baking pan. For added ease, line it with parchment paper.

Mix Wet Ingredients

In a large bowl, combine melted butter, granulated sugar, and brown sugar. Mix until well combined. Add in the sourdough starter, eggs, and peppermint extract. Stir until smooth.

Combine Dry Ingredients

In another bowl, whisk together the flour, cocoa powder, baking powder, and salt. Gradually fold the dry ingredients into the wet mixture until just combined. Be careful not to overmix.

Add Chocolate Chips

Gently fold in the chocolate chips, ensuring they are evenly distributed throughout the batter.

Bake the Brownies

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

Cool and Serve

Allow the brownies to cool in the pan for at least 10 minutes before transferring to a wire rack to cool completely. Cut into squares and enjoy!

Enjoy Your Treat!

Pro Tips

  • For an extra minty kick, sprinkle crushed peppermint candies on top after baking. They add a festive touch and enhance the flavor!

Troubleshooting Common Issues

If your brownies turn out too dry, this may be a sign of overmixing or baking too long. It’s crucial to mix until just combined and to check for doneness a few minutes before the recommended baking time is up. Aim for a toothpick that comes out with a few moist crumbs rather than clean for that fudgy texture.

On the other hand, if your brownies are too gooey, it could be due to underbaking. Make sure to follow the suggested baking time, but also watch your oven—every one bakes differently. A small increase in baking time may be necessary, particularly if your batter seems runny or you used additional ingredients like fresh mint that add extra moisture.

Variations to Try

While these mint chocolate brownies are delightful on their own, you can personalize them to mix things up. For a nutty crunch, consider adding chopped walnuts or pecans to the batter, folding them in just after incorporating the chocolate chips. This addition will provide a pleasing texture contrast against the fudgy brownie.

You can also add a swirl of cream cheese or peanut butter on top of the brownie batter before baking for an unexpected flavor twist. Simply drop spoonfuls of your desired spread onto the batter and use a knife to create swirls. Be careful not to overmix; you want to preserve the marbled effect for a stunning presentation.

Questions About Recipes

→ Can I use a different extract instead of mint?

Absolutely! Feel free to replace peppermint extract with vanilla or almond extract for a different flavor profile.

→ How do I store leftover brownies?

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

→ Can I freeze these brownies?

Yes, you can freeze the brownies! Wrap them individually in plastic wrap and place them in a freezer bag for up to 3 months.

→ What can I serve with these brownies?

These brownies pair wonderfully with vanilla ice cream, whipped cream, or a drizzle of chocolate sauce for an indulgent dessert.

Sourdough Mint Chocolate Brownies

I absolutely adore the rich and decadent flavors of brownies, and my sourdough mint chocolate brownies truly elevate this classic treat. The addition of sourdough starter adds depth and a slight tang that wonderfully balances the sweetness of chocolate and the refreshing hints of mint. When baked, these brownies boast a fudgy texture that's hard to resist. I love serving them warm with a scoop of vanilla ice cream, making for the perfect after-dinner indulgence. You’ll find that they disappear quickly at gatherings!

Prep Time15 minutes
Cooking Duration30 minutes
Overall Time45 minutes

Created by: Emily

Recipe Type: Classic Baking Recipes

Skill Level: Beginner

Final Quantity: 16 brownies

What You'll Need

For the Brownies

  1. 1 cup unsalted butter, melted
  2. 1 cup granulated sugar
  3. 1/2 cup packed light brown sugar
  4. 1 cup sourdough starter (discard is fine)
  5. 2 large eggs
  6. 2 teaspoons peppermint extract
  7. 1 cup all-purpose flour
  8. 1/2 cup unsweetened cocoa powder
  9. 1/2 teaspoon baking powder
  10. 1/4 teaspoon salt
  11. 1 cup semi-sweet chocolate chips

How-To Steps

Step 01

Preheat your oven to 350°F (175°C) and grease a 9x13 inch baking pan. For added ease, line it with parchment paper.

Step 02

In a large bowl, combine melted butter, granulated sugar, and brown sugar. Mix until well combined. Add in the sourdough starter, eggs, and peppermint extract. Stir until smooth.

Step 03

In another bowl, whisk together the flour, cocoa powder, baking powder, and salt. Gradually fold the dry ingredients into the wet mixture until just combined. Be careful not to overmix.

Step 04

Gently fold in the chocolate chips, ensuring they are evenly distributed throughout the batter.

Step 05

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

Step 06

Allow the brownies to cool in the pan for at least 10 minutes before transferring to a wire rack to cool completely. Cut into squares and enjoy!

Extra Tips

  1. For an extra minty kick, sprinkle crushed peppermint candies on top after baking. They add a festive touch and enhance the flavor!

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