Description
Deeply chocolaty, fudgy Sourdough Brownies made with sourdough discard for an extra-tender, chewy texture and rich cocoa flavor.
Ingredients
Scale
- 170 g (3/4 cup) unsalted butter: creates a rich, fudgy base
- 300 g (1 1/2 cups) granulated sugar: sweetens and helps form a shiny, crackly top
- 80 g (3/4 cup) Dutch-process cocoa powder: delivers deep chocolate flavor and color
- 2 large egg yolks: add richness and a fudgier bite
- 1 large egg: adds structure while keeping the texture chewy
- 1 tsp vanilla extract: boosts and rounds out the chocolate flavor
- 1/2 tsp fine sea salt: balances sweetness and intensifies cocoa notes
- 100 g sourdough discard (unfed starter): adds moisture and tenderness without a bready taste
- 65 g (1/2 cup) all-purpose flour: provides structure without turning cakey
- 120 g semi-sweet or dark chocolate, very finely chopped (optional): enhances chocolate intensity and helps create a shinier crust
Instructions
- Preheat the oven to 325°F (163°C). Line a 9-inch square pan with parchment paper, leaving overhang for easy lifting.
- Add the butter to a heatproof bowl and microwave for about 1 minute until partially melted. Add the sugar and whisk to combine, then microwave about 1 minute more until the butter is fully melted and hot. Whisk very well until glossy and slightly thickened.
- Add the cocoa powder (sift if lumpy) and whisk until the mixture thickens and starts to clump around the whisk.
- Add the vanilla and salt. Add the egg and egg yolks and beat vigorously (preferably with a hand mixer) for about 2 minutes until smooth, thick, and shiny.
- Add the sourdough discard and flour. Mix just until combined so the brownies stay fudgy.
- Fold in the finely chopped chocolate if using.
- Pour batter into the prepared pan and smooth the top.
- Bake about 35–40 minutes, until the top looks matte and the center puffs slightly, then settles. A tester should come out with moist crumbs and thick, fudgy streaks (not wet batter, and not completely clean).
- Cool completely in the pan, then lift out using parchment and slice into squares.
Notes
- Don’t overbake: remove when a tester shows moist crumbs and thick fudgy streaks for the best Sourdough Brownies texture.
- The center is the best doneness cue: it should puff up near the end, then gently settle.
- For a shinier, crackly top, whisk/beat the hot butter-sugar mixture and eggs thoroughly as directed.
- If you skip the chopped chocolate, the top may be more matte; drizzle melted dark chocolate on top after cooling if desired.
- Store in an airtight container at room temperature up to 3 days, refrigerate up to 1 week, or freeze tightly wrapped portions up to 2 months.
- Prep Time: 20 minutes
- Cook Time: 40 minutes
- Category: Dessert
- Method: Baking
- Cuisine: American
Nutrition
- Serving Size: 1 brownie (1/16 of pan)
- Calories: 229
- Sugar: 23 g
- Sodium: 90 mg
- Fat: 12 g
- Saturated Fat: 7 g
- Unsaturated Fat: 4 g
- Trans Fat: 0 g
- Carbohydrates: 29 g
- Fiber: 2 g
- Protein: 3 g
- Cholesterol: 58 mg