Sourdough Discard Brownies Peanut

There's something magical about transforming sourdough discard into decadent chocolate brownies. These fudgy sourdough discard brownies with peanut butter swirl prove that your leftover starter deserves better than the compost bin. The tangy notes from the sourdough beautifully complement the rich chocolate, while the creamy peanut butter swirl adds a luxurious finish that makes these brownies utterly irresistible.

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What sets these brownies apart is how the sourdough discard enhances the chocolate flavor while keeping the texture moist and tender. The gentle tang balances the sweetness perfectly, creating a sophisticated brownie that's anything but ordinary. And that peanut butter swirl? It's the crowning glory that turns these from everyday treats into something truly special.

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. Watch for the center to just set—the toothpick should come out with moist crumbs, not clean. Allow them to cool completely in the pan, as this helps them set properly and makes slicing much easier. For clean cuts, wipe your knife between slices. Your sourdough discard can be straight from the fridge; no need to bring it to room temperature first.

Varianten und Anpassungen

For a nut-free version, omit peanut butter or replace with sunflower seed butter for a similar creamy swirl. Add chocolate chips or chopped nuts for extra texture and crunch throughout the brownies. You can also experiment with almond butter or cashew butter for the swirl, each bringing its own unique flavor profile. For an extra decadent touch, fold in white chocolate chips or swirl in dulce de leche alongside the peanut butter.

Serviervorschläge

Serve with a scoop of vanilla ice cream for an indulgent dessert that contrasts beautifully with the warm, fudgy brownies. These brownies are also perfect alongside a hot cup of coffee or a cold glass of milk. Cut them into smaller squares for parties or potlucks, or serve larger portions with fresh berries and a dusting of powdered sugar for an elegant plated dessert. They're equally delicious at room temperature or slightly warmed in the microwave for 10-15 seconds.

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These sourdough discard brownies with peanut butter swirl are proof that sustainable baking can be absolutely delicious. Every batch transforms what would be wasted starter into a rich, fudgy treat that rivals any traditional brownie recipe. The subtle complexity from the sourdough elevates these brownies beyond the ordinary, while the peanut butter swirl adds that perfect finishing touch. Whether you're a sourdough baker looking to use up discard or simply a brownie enthusiast, this recipe delivers on every level.

Recipe Q&A

→ How does sourdough discard affect the brownies?

Sourdough discard adds moisture and a subtle tang, enriching the chocolate flavors and creating a tender crumb.

→ Can I replace the peanut butter swirl?

Yes, alternatives like sunflower seed butter can be used for nut-free options, keeping the swirled texture intact.

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

Drop spoonfuls of peanut butter mixture atop the batter and gently swirl using a skewer or knife for even marbling.

→ How do I know when the brownies are done?

Bake until the centers set but remain moist; a toothpick should come out with moist crumbs, not dry.

→ Can I add mix-ins for texture?

Yes, chocolate chips or chopped nuts can be folded in to provide additional crunch and variety.