Sourdough Discard Brownies Peanut

There's something wonderfully resourceful about transforming sourdough discard into a decadent dessert. These fudgy chocolate brownies prove that your leftover starter doesn't have to go to waste—instead, it becomes the secret ingredient that makes these bars impossibly moist and rich. Swirled with creamy peanut butter and baked to perfection, they're the ultimate treat for anyone who loves the combination of chocolate and peanut butter.

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The magic of these brownies lies in the sourdough discard, which adds moisture and a subtle tangy depth that balances the sweetness perfectly. Unlike traditional brownies, these have a uniquely tender crumb that stays fresh for days. The peanut butter swirl isn't just for looks—it creates pockets of creamy, nutty goodness throughout each bite.

Ingredients

• Chocolate & Butter: 115 g (1/2 cup) unsalted butter, 170 g (1 cup) semisweet chocolate chips or chopped chocolate
• Wet Ingredients: 120 g (1/2 cup) sourdough discard (unfed), 200 g (1 cup) granulated sugar, 2 large eggs, 1 tsp vanilla extract
• Dry Ingredients: 65 g (1/2 cup) all-purpose flour, 30 g (1/4 cup) unsweetened cocoa powder, 1/2 tsp fine sea salt
• Swirl: 80 g (1/3 cup) creamy peanut butter, 1 tbsp powdered sugar (optional, for a sweeter swirl)

Instructions

Step 1: Prepare the pan

Preheat your oven to 175°C (350°F). Line a 20x20 cm (8x8 inch) square pan with parchment paper.

Step 2: Melt chocolate and butter

In a microwave-safe bowl, melt the butter and chocolate together in 30-second bursts, stirring until smooth. Let cool for 3 minutes.

Step 3: Mix wet ingredients

In a large bowl, whisk together the sourdough discard, sugar, eggs, and vanilla until well combined.

Step 4: Combine chocolate mixture

Pour the melted chocolate mixture into the bowl and whisk until smooth.

Step 5: Add dry ingredients

Sift in the flour, cocoa powder, and salt. Mix gently with a spatula until just combined—do not overmix.

Step 6: Transfer to pan

Pour the batter into the prepared pan and smooth the top.

Step 7: Create peanut butter swirl

In a small bowl, stir together peanut butter and powdered sugar (if using) until smooth. Drop spoonfuls of the peanut butter mixture over the brownie batter. Use a skewer or knife to gently swirl the peanut butter into the batter.

Step 8: Bake

Bake for 28–32 minutes, or until the center is just set and a toothpick comes out with moist crumbs.

Step 9: Cool and serve

Let cool completely in the pan before slicing into squares.

Zusatztipps für die Zubereitung

The key to perfectly fudgy brownies is not overbaking. The center should still look slightly underdone when you remove them from the oven—they'll continue to set as they cool. When melting the chocolate and butter, make sure to let the mixture cool for a few minutes before adding it to the eggs to prevent them from cooking. For the cleanest cuts, refrigerate the brownies for an hour before slicing, and wipe your knife clean between each cut.

Varianten und Anpassungen

These brownies are wonderfully versatile. For a nut-free version, omit the peanut butter or replace with sunflower seed butter for a similar creamy swirl. Add chocolate chips or chopped nuts to the batter for extra texture and richness. You can also experiment with different nut butters like almond or cashew butter for unique flavor variations. If you prefer a less sweet swirl, skip the powdered sugar in the peanut butter mixture.

Serviervorschläge

These brownies are delicious on their own, but they become truly indulgent when served warm with a scoop of vanilla ice cream on top. The contrast between the warm, fudgy brownie and cold ice cream is irresistible. For an elegant dessert presentation, dust with powdered sugar and serve with fresh berries. They also pair beautifully with a glass of cold milk or a hot cup of coffee. Store leftovers in an airtight container at room temperature for up to 4 days, or freeze for up to 3 months.

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Whether you're an avid sourdough baker looking for creative ways to use your discard or simply a brownie lover seeking the ultimate fudgy treat, these sourdough discard brownies with peanut butter swirl deliver on every level. They're proof that sustainable baking can be absolutely delicious, turning what might be waste into something truly special. Enjoy every rich, chocolatey, peanut butter-swirled bite!

Frequently Asked Questions

→ How does sourdough discard affect the texture?

It adds moisture and a subtle tang, resulting in fudgier, richer brownies with enhanced depth of flavor.

→ Can I substitute peanut butter for allergies?

Yes, sunflower seed butter or another nut-free spread can be used to maintain the swirl effect without peanuts.

→ What is the best way to create the peanut butter swirl?

Drop spoonfuls of peanut butter mixture over the batter and gently swirl using a skewer or knife for a marbled pattern.

→ How do I know when the brownies are done?

They are ready when a toothpick inserted in the center comes out with moist crumbs but not wet batter.

→ Can I add extra texture to these brownies?

Adding chocolate chips or chopped nuts enhances texture and adds bursts of flavor within the moist crumb.