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Sourdough Brown Butter Chocolate Chip Brownies

August 18, 2025

20 minutes

easy

16 brownies

Sourdough Brown Butter Chocolate Chip Brownies | Fudgy & Chewy

The ultimate sourdough discard dessert — nutty brown butter meets gooey chocolate in the fudgiest brownies ever!

These Sourdough Brown Butter Chocolate Chip Brownies are rich, gooey, and absolutely unforgettable. The nutty depth of brown butter pairs perfectly with the slight tang of sourdough discard, creating a brownie that’s both classic and elevated. Each bite is chewy at the edges, soft in the middle, and packed with melty chocolate.

Whether you’re looking for a new sourdough discard recipe or the ultimate fudgy brownie, this one is guaranteed to win hearts (and empty plates!).

💚 Why You’ll Love These Brownies

🍫 Gooey, fudgy centers with melty chocolate in every bite
🌰 Playful add-ins — toss in walnuts, swirl in caramel, or double the chocolate chips
🍦 Endless serving fun — top with ice cream, dust with powdered sugar, or drizzle with warm ganache
✨ Brown butter + sourdough = rich, nutty, tangy magic you’ll want on repeat

👩‍🍳 A Baker’s Tease

There’s nothing quite like that first bite — still warm from the oven, fudgy chocolate clinging to the fork, melty chips running into the crackly edge. These brownies beg to be shared (but honestly… good luck!). Whether you jazz them up with walnuts, dust them with powdered sugar, or crown them with a scoop of vanilla ice cream, they’re pure brownie bliss. 💕

Close-up fudgy brownie topped with a scoop of vanilla swirl ice cream, chocolate sauce dripping down the sides
Warm brownie. Cold swirl. Zero self-control. 🍫🍦✨

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Ingredients

Adjust Servings
¾ cup dark chocolate chips (or chip of choice)
¼ cup (½ stick) butter
¼ cup olive oil
3 eggs (2 eggs +1 egg white)
½ tsp salt
⅔ cup granulated sugar
½ cup light brown sugar
2 tbsp freshly brewed coffee, cooled (or water or milk)
1 tsp vanilla extract
½ cup unsweetened cocoa powder
½ cup + 1 tbsp sourdough discard, at room temp
½ cup extra chocolate chips for folding in or sprinkling on top (optional)
Flaky sea salt, for topping
Whipped Honey Cinnamon Butter

Nutritional Information

195 Calories
26.3g Carbs
2.8g Protein
10.6g Fat

Directions

1.

Preheat your oven & pan

Heat the oven to 375°F. Grease and line an 8-inch square pan with parchment paper so your brownies lift right out.
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2.

Brown the butter

Add the butter to a small saucepan over medium heat. Let it melt, foam, and sizzle until the milk solids turn golden brown and it smells nutty and toasty. Pull it off the heat.
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3.

Melt the chocolate

In a clean medium bowl, add the chocolate chips. Stir the warm brown butter together with the olive oil, then pour this mixture right over the chocolate chips. Let it sit for a moment, then stir until glossy and smooth.
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4.

Whip the eggs & sugar

In a large bowl, beat the eggs, egg white, salt, granulated sugar, and brown sugar with a hand mixer until pale and fluffy. Whisk in the coffee and vanilla until the sugar dissolves.
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5.

Mix in the cocoa & discard

Stir the cocoa powder and sourdough discard into the melted chocolate mixture (it’ll look thick and a little dry at first).
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6.

Bring it all together

Fold the chocolate mixture gently into the egg mixture with a spatula until just combined. Add the extra chocolate chips here if you’re going big.
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7.

Bake

Pour the batter into your prepared pan. Bake at 375°F for 35–60 minutes, depending on your pan and oven. Metal pans bake faster, while glass or ceramic pans may take closer to an hour. The brownies are ready when the edges are set and the center looks shiny and just slightly gooey.
Cut squares of fudgy sourdough brown butter chocolate chip brownies on parchment paper, ready to eat
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8.

Finish strong

Sprinkle with flaky sea salt. Let them cool for about 15 minutes before slicing into fudgy squares.
Cut fudgy brownies on parchment with chocolate chips; two pieces dusted with powdered sugar 🍫
✨ Enjoy warm with melty centers, or top with ice cream, powdered sugar, or a drizzle of ganache for brownie bliss.
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Notes

You did it! Now comes the best part — waiting just long enough for those brownies to cool so you don’t burn your tongue (hard, I know). That first bite is everything: rich brown butter, fudgy chocolate, melty chips, and a little sea salt sparkle. Pure chocolate bliss, straight from your oven.
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