Triple Chocolate Sourdough Brownies

Featured in: Sweet Simple Treats

These brownies combine bittersweet, milk, and semi-sweet chocolates, blended with sourdough discard to create a uniquely chewy texture and rich flavor. The batter includes cocoa powder, softened butter, and sugars whipped with eggs and vanilla for a smooth consistency. Baking at a moderate temperature ensures a moist center with set edges. Chilling before slicing enhances chewiness, while optional nuts can add crunch. Ideal for those craving a decadent yet textured dessert.

Updated on Fri, 27 Feb 2026 17:33:58 GMT
Triple Chocolate Sourdough Brownies with rich layers of dark, milk, and semi-sweet chocolate, baked to chewy perfection with tangy sourdough discard. Pin Recipe
Triple Chocolate Sourdough Brownies with rich layers of dark, milk, and semi-sweet chocolate, baked to chewy perfection with tangy sourdough discard. | fordishes.com

These Triple Chocolate Sourdough Brownies are a decadent twist on a classic favorite, transforming your sourdough discard into rich, fudgy squares of pure chocolate indulgence. With three distinct types of chocolate—bittersweet, milk, and semi-sweet—layered throughout, each bite delivers deep, complex flavor and an irresistibly chewy texture. The tangy sourdough discard adds a subtle brightness that cuts through the sweetness, creating a perfectly balanced brownie that's far more interesting than the standard box mix. Whether you're an avid sourdough baker looking to use up leftover starter or simply a chocolate lover seeking the ultimate brownie experience, this recipe delivers on all fronts.

Triple Chocolate Sourdough Brownies with rich layers of dark, milk, and semi-sweet chocolate, baked to chewy perfection with tangy sourdough discard. Pin Recipe
Triple Chocolate Sourdough Brownies with rich layers of dark, milk, and semi-sweet chocolate, baked to chewy perfection with tangy sourdough discard. | fordishes.com

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The magic of these brownies lies in the careful balance of ingredients and the unique role of sourdough discard. Unlike traditional brownies that rely solely on eggs for moisture and structure, the sourdough starter contributes both tanginess and extra chewiness, creating a texture that's dense without being cakey. The combination of bittersweet and milk chocolate in the base, enhanced by Dutch-process cocoa powder, provides an intense chocolate foundation, while the semi-sweet chips throughout offer pockets of melty goodness in every bite. This isn't just a way to use up discard—it's a genuinely superior brownie that happens to be sustainable and resourceful.

Ingredients

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  • Chocolate & Cocoa: 120 g (4 oz) bittersweet chocolate, chopped; 60 g (2 oz) milk chocolate, chopped; 30 g (1/4 cup) unsweetened Dutch-process cocoa powder
  • Fats: 115 g (1/2 cup) unsalted butter, cubed
  • Sugar: 200 g (1 cup) granulated sugar; 50 g (1/4 cup) light brown sugar, packed
  • Sourdough & Liquids: 120 g (1/2 cup) sourdough discard (unfed); 2 large eggs, at room temperature; 1 tsp pure vanilla extract
  • Dry Ingredients: 80 g (2/3 cup) all-purpose flour; 1/2 tsp fine sea salt
  • Chocolate Mix-ins: 60 g (1/3 cup) semi-sweet chocolate chips or chunks

Instructions

Step 1: Prepare the Pan
Preheat your oven to 350°F (175°C). Line an 8-inch (20 cm) square baking pan with parchment paper, leaving some overhang for easy removal.
Step 2: Melt the Chocolate Base
In a heatproof bowl, combine the bittersweet chocolate, milk chocolate, cocoa powder, and butter. Melt together over a saucepan of simmering water or in the microwave in 30-second bursts, stirring until smooth. Let cool slightly.
Step 3: Whisk the Eggs and Sugar
In a large bowl, whisk together the sugars, eggs, and vanilla extract until pale and thick, about 2–3 minutes.
Step 4: Incorporate Sourdough
Whisk the sourdough discard into the chocolate mixture until fully incorporated.
Step 5: Combine Wet Ingredients
Add the chocolate mixture to the egg-sugar mixture and mix gently until combined.
Step 6: Add Dry Ingredients
Sift in the flour and salt. Fold in gently with a spatula until just combined; do not overmix.
Step 7: Add Chocolate Chips
Gently fold in the chocolate chips or chunks.
Step 8: Fill the Pan
Pour the batter into the prepared pan and smooth the top.
Step 9: Bake
Bake for 28–32 minutes, or until the edges are set and the center is just slightly wobbly. Do not overbake for a chewy center.
Step 10: Cool and Slice
Cool completely in the pan on a wire rack before lifting out and slicing into squares.

Zusatztipps für die Zubereitung

For the best results, use room temperature eggs as they incorporate more smoothly into the batter and create better structure. When melting the chocolate, be patient and stir frequently to prevent scorching—overheated chocolate can become grainy and lose its smooth texture. Don't skip the step of whisking the eggs and sugar until pale and thick; this aerates the mixture and contributes to the brownies' signature shiny, crackly top. When folding in the flour, stop as soon as you no longer see dry streaks—overmixing develops gluten and can make your brownies tough rather than tender. The slight wobble in the center at the end of baking is intentional; the brownies will continue to set as they cool, resulting in that perfect fudgy texture.

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Varianten und Anpassungen

This recipe is wonderfully adaptable to suit different tastes and dietary needs. For a nuttier version, fold in 1/2 cup of chopped toasted walnuts or pecans along with the chocolate chips for added crunch and earthy flavor. If you prefer an even darker, more intense chocolate experience, substitute dark chocolate for the milk chocolate and increase the bittersweet chocolate slightly. For a hint of sophistication, add 1/4 teaspoon of espresso powder to the chocolate mixture to deepen the chocolate flavor without adding coffee taste. Peppermint lovers can stir in 1/2 teaspoon of peppermint extract and top with crushed candy canes during the holiday season. To make these brownies more indulgent, swirl in 1/3 cup of dulce de leche or peanut butter before baking for ribbons of caramel or nutty goodness throughout.

Serviervorschläge

These Triple Chocolate Sourdough Brownies are delicious on their own, but they also shine as part of a more elaborate dessert presentation. Serve them warm with a scoop of vanilla bean ice cream or whipped cream for a classic à la mode experience that highlights the contrast between hot, fudgy brownie and cold, creamy topping. For an elegant dinner party dessert, cut them into small squares and arrange on a platter with fresh raspberries and a dusting of powdered sugar. They also make an excellent base for brownie sundaes—top with hot fudge, caramel sauce, whipped cream, and a cherry for an over-the-top treat. For a sophisticated coffee pairing, serve alongside a strong espresso or rich hot chocolate. These brownies keep well at room temperature for 3 days in an airtight container, or can be refrigerated for up to a week for an even chewier texture, or frozen for up to 3 months.

Sliced Triple Chocolate Sourdough Brownies arranged on a serving plate with visible layers of dark and semi-sweet chocolate. Pin Recipe
Sliced Triple Chocolate Sourdough Brownies arranged on a serving plate with visible layers of dark and semi-sweet chocolate. | fordishes.com

Whether you're a devoted sourdough baker with discard to spare or simply someone who appreciates an exceptional brownie, this Triple Chocolate Sourdough recipe deserves a permanent place in your baking repertoire. The combination of three chocolates creates a depth of flavor that single-chocolate brownies simply can't match, while the sourdough discard adds a subtle complexity that keeps people guessing about your secret ingredient. These brownies prove that sustainability and indulgence aren't mutually exclusive—you can reduce food waste while creating something truly spectacular. So preheat that oven, gather your ingredients, and prepare to experience brownies that are chewy, fudgy, tangy, and absolutely unforgettable.

Recipe FAQs

What does sourdough discard add to the brownies?

Sourdough discard imparts a subtle tang and contributes to a uniquely chewy texture, enriching the overall flavor complexity.

Can I substitute dark chocolate for bittersweet chocolate?

Yes, dark chocolate can replace bittersweet chocolate to maintain richness while slightly altering the sweetness balance.

How do I ensure a chewy texture in these brownies?

Baking until edges are set but the center remains slightly soft, then chilling them for at least an hour, will enhance chewiness.

Why are three types of chocolate used?

Using bittersweet, milk, and semi-sweet chocolates layers the flavors, balancing bitterness, sweetness, and depth for a more complex taste.

Can nuts be added for texture?

Yes, chopped toasted walnuts or pecans can be folded into the batter for added crunch and flavor contrast.

What is the recommended pan size for baking?

An 8-inch square baking pan is ideal to achieve the correct thickness and baking time for these brownies.

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Triple Chocolate Sourdough Brownies

Fudgy brownies featuring three types of chocolate and a tangy sourdough twist for a chewy texture.

Prep Duration
20 mins
Cooking Duration
30 mins
Complete Time
50 mins
Recipe by Fordishes Ava Reynolds


Skill Level Medium

Cuisine American

Makes 16 Number of Servings

Diet Details Vegetarian Option

Ingredient List

Chocolate & Cocoa

01 4 oz bittersweet chocolate, chopped
02 2 oz milk chocolate, chopped
03 1/4 cup unsweetened Dutch-process cocoa powder

Fats

01 1/2 cup unsalted butter, cubed

Sugar

01 1 cup granulated sugar
02 1/4 cup light brown sugar, packed

Sourdough & Liquids

01 1/2 cup sourdough discard, unfed
02 2 large eggs, at room temperature
03 1 teaspoon pure vanilla extract

Dry Ingredients

01 2/3 cup all-purpose flour
02 1/2 teaspoon fine sea salt

Chocolate Mix-ins

01 1/3 cup semi-sweet chocolate chips or chunks

Directions

Step 01

Prepare pan and preheat oven: Preheat oven to 350°F. Line an 8-inch square baking pan with parchment paper, allowing overhang for easy removal.

Step 02

Melt chocolate mixture: In a heatproof bowl, combine bittersweet chocolate, milk chocolate, cocoa powder, and butter. Melt together over simmering water or in microwave using 30-second bursts, stirring until smooth. Cool slightly.

Step 03

Whisk egg and sugar base: In a large bowl, whisk together granulated sugar, brown sugar, eggs, and vanilla extract until pale and thick, approximately 2 to 3 minutes.

Step 04

Incorporate sourdough discard: Whisk sourdough discard into the chocolate mixture until fully incorporated.

Step 05

Combine chocolate and egg mixtures: Add chocolate mixture to egg-sugar mixture and fold gently until combined.

Step 06

Fold in dry ingredients: Sift flour and salt over batter. Fold in gently with spatula until just combined, avoiding overmixing.

Step 07

Add chocolate chips: Gently fold chocolate chips or chunks into batter.

Step 08

Transfer to pan: Pour batter into prepared pan and smooth the top surface evenly.

Step 09

Bake brownies: Bake for 28 to 32 minutes, or until edges are set and center is slightly wobbly. Avoid overbaking to maintain chewy texture.

Step 10

Cool completely: Cool brownies completely in pan on wire rack before lifting out and slicing into squares.

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Needed Equipment

  • 8-inch square baking pan
  • Parchment paper
  • Mixing bowls
  • Whisk
  • Rubber spatula
  • Saucepan or microwave
  • Wire cooling rack

Allergy Info

Double-check ingredients for allergens and speak with a healthcare provider if you're unsure.
  • Contains wheat (gluten)
  • Contains eggs
  • Contains milk (dairy)
  • May contain soy from chocolate

Nutrition Information (per serving)

For informational use only—doesn't replace personalized medical direction.
  • Calories: 220
  • Fats: 11 g
  • Carbohydrates: 29 g
  • Proteins: 3 g

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