Sourdough Brownies

June 27, 2024 | By Amy Duska If you click on links we provide, we may receive compensation.

This recipe makes the best sourdough brownies. They are rich and fudgy, with thick gooey centers and shiny crackly tops. Don't throw away that sourdough discard. Make a sweet treat and satisfy your chocolate cravings at the same time!

A photo of the shiny crackly top of a tray of sourdough brownies.


 

If you have a sourdough starter, then you're bound to end up with discard and don't want to throw it away. That's one of the reasons why we love to share sourdough discard recipes.

This recipe for sourdough brownies is sure to make any chocolate lover very, very happy!

Recipe highlights

  • great use for sourdough discard: Cut down on food waste. There's no need to throw away starter when you have a good recipe to use it in!
  • thick and fudgy: These bad boys are full of ooey, gooey goodness, with fudgy centers and crackly tops.
  • rich chocolate flavor: These sourdough brownies are everything you think of when you're craving a decadent chocolate dessert.
  • easy to make: This is a simple brownie recipe that only requires a few steps and common pantry ingredients.

What you'll need

  • eggs, dark brown sugar and granulated sugar: You'll beat these together to make a "meringue" that creates that beautiful, shiny crust on top!
  • butter, dutched cocoa powder, vanilla extract and chocolate chips: These ingredients get melted together on the stovetop. The heat "blooms" the chocolate, bringing out even more depth of flavor.
  • flour and salt: These are added last and folded in with a spatula to keep the batter from being over-mixed.

Step by step instructions

Before you start mixing the ingredients, preheat your oven to 350ยฐF (176ยฐC) and line a 9" x 9" baking dish with parchment paper.

Step 1: Melt the butter in a saucepan over medium-low heat. Add the vanilla extract and chocolate chips and stir until the chocolate has melted. Add the cocoa powder and stir until the mixture is smooth. Set aside and allow it to cool.

Melted chocolate and butter in a saucepan.

Step 2: In a large mixing bowl or a stand mixer with the whisk attachment, beat the eggs, granulated sugar and dark brown sugar on medium-high speed for 7-10 minutes. Add the sourdough starter discard and chocolate mixture to the bowl and beat on low speed to combine.

Melted chocolate added to the creamed sugar and eggs in a bowl.

Step 3: Add the flour and salt to the bowl and use a spatula to gently stir them into the batter.

Sourdough brownie batter in a bowl with a spatula.

Step 4: Pour the batter into the baking dish, smooth evenly and bake for 35-40 minutes.

Brownie batter in a baking dish lined with parchment paper.

Remove from the oven and allow the brownies to cool completely in the baking dish before cutting into squares.

A sourdough brownie on a piece of parchment paper.

Frequently asked questions

How do I know when the brownies are done? It's important not to over-bake the sourdough brownies. You'll know when they are done when the edges are set but still appears slightly under baked in the center. The brownies will continue to cook as they cool in the pan, which is another reason they must cool before you cut them!

What kind of flour should I use for brownies? All-purpose flour is best for baking brownies. Cake flour should be avoided as it will produce a brownie with less structure and be soft and "cake-like".

Can I use regular cocoa powder? Yes you can. We've tested this recipe with cocoa powder and separately with dutched cocoa powder. Both produced excellent results. Use dutched cocoa powder for a deeper chocolate flavor.

Can I use only one type of sugar in this recipe? Yes you can. We like the added depth of flavor brown sugar adds, but feel free to use all brown sugar or all granulated sugar. Brown sugar adds moisture to the batter so you may need to adjust baking time if you alter the recipe.

Do I have to use parchment paper? No, but it is highly recommended for two reasons. Not only does parchment paper prevent the brownies from sticking to the pan, it acts like a sling to easily lift them up and out in one big piece before cutting into squares.

How to store and freeze

  • To Store: Allow the brownies to cool completely after they come out of the oven. Store them in an airtight container or cover with plastic wrap. Keep them at room temperature for up to 7 days.
  • To Freeze: After brownies have cooled, wrap individual baked brownies in plastic wrap and place in a freezer-safe container or bag. Keep in the freezer for up to 3 months.
  • To Reheat: Allow brownies to thaw, if frozen. Place in the microwave for 10-15 seconds on high.

More easy sourdough discard recipes

Looking for an easy recipe to make with your sourdough discard? Make something fun like homemade sourdough vanilla cake, sourdough sugar cookie bars, sourdough pop tarts, sourdough chocolate chip cookies or double chocolate sourdough muffins.

Don't have a sweet tooth? Bake up an easy snack of sourdough discard crackers. Or try one of our reader favorites, sourdough pizza crust, for a delicious brick-oven style pizza at home!

Browse through our collection of sourdough discard recipes to find something your family will rave about!

Sourdough Brownies Recipe

Sourdough brownies are super rich and fudgy with thick, gooey centers and shiny crackly tops. A chocolate lovers dream come true!
Rate this recipe!
4.98 from 733 votes
Print Pin Recipe
Prep Time: 25 minutes
Cook Time: 35 minutes
Servings: 16
Author: Amy Duska

INGREDIENTS

  • 8 tablespoons (113 g) unsalted butter
  • 12 oz. (340 g) semi sweet chocolate chips
  • ยฝ cup (40 g) dutched cocoa powder (or regular cocoa powder)
  • 2 teaspoons (10 g) vanilla extract
  • 2 large eggs
  • 1 egg yolk
  • 1 cup (200 g) granulated sugar
  • ยฝ cup (110 g) dark brown sugar
  • ยฝ cup (125 g) sourdough starter discard
  • 1 cup (120 g) all-purpose flour
  • 1 teaspoon (5 g) salt

INSTRUCTIONS

  • Preheat oven to 350ยฐF (176ยฐC) and line a 9" x 9" baking dish with parchment paper.
  • Melt the butter in a small saucepan over low heat. Add the chocolate chips, vanilla extract and dutched cocoa powder. Stir the ingredients until the chocolate chips have melted and the mixture is smooth. Remove the saucepan from the burner and set it aside to cool down.
    Melted chocolate and butter in a saucepan.
  • In a large mixing bowl, beat the eggs, brown sugar and granulated sugar with an electric mixer for 7-10 minutes. Add the sourdough discard and chocolate mixture to the bowl beat on low until combined. Add the flour and salt and stir with a spatula until just combined. (The batter will be very thick.)
    Sourdough brownie batter in a bowl with a spatula.
  • Pour the batter into the baking dish and smooth the top. Bake for 35-40 minutes.
    Brownie batter in a baking dish lined with parchment paper.
  • Allow the brownies to cool completely in the pan after they come out of the oven. Remove the brownies from the pan by lifting them with the parchment paper and cut into squares.

NOTES

  • To Store: Allow the brownies to cool completely after they come out of the oven. Store them in an airtight container or cover with plastic wrap. Keep them at room temperature for up to 7 days.
  • To Freeze: After brownies have cooled, wrap individual baked brownies in plastic wrap and place in a freezer-safe container or bag. Keep in the freezer for up to three months.
  • To Reheat: Allow brownies to thaw, if frozen. Place in the microwave for 10-15 seconds on high.

Nutrition

Calories: 302kcal | Carbohydrates: 39g | Protein: 4g | Fat: 15g | Saturated Fat: 9g | Cholesterol: 52mg | Sodium: 208mg | Potassium: 178mg | Fiber: 3g | Sugar: 27g | Vitamin A: 236IU | Calcium: 24mg | Iron: 2mg
4.98 from 733 votes (329 ratings without comment)

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Recipe Rating




755 Comments

  1. 5 stars
    Ok. So I was a little skeptical after I tried the batter that these would be a little too chocolatey (more like dark chocolate). BUT they turned out absolutely perfect. Best brownies I have had in a long time. My chocolate didnโ€™t get creamy on the stove (not sure why). I did add a little coconut oil to see if that would help. It really didnโ€™t, but it didnโ€™t seem to matter much - it blended with the other ingredients perfectly.

  2. Per my 6 year old Grandson, โ€œthese are the best brownies I have ever eaten.โ€ I agree with him. I made as you said and they turned out perfect. I would definitely make again, but I would add pecans on top.

  3. I wanted to love this recipe. I followed it exactly, (I triple checked because it seemed EXTREMELY DRY when I was mixing it). Even beating it for 8 minutes. It was so dry and cakey. Itโ€™s so rich and chocolatey though and can be recovered with a nice bowl of ice cream. I just wonโ€™t be making this recipe again.

    1. Hi Emily,

      Iโ€™m so sorry to hear about your experience with these brownies. It sounds like there might have been a bit too much flour in the mix. Did you happen to measure the flour using measuring cups? We always recommend using a kitchen scale to measure in grams for the most accurate measurement, as measuring cups can often lead to packing in more flour than intended, which can lead to a "dry" batter.

  4. 5 stars
    Very chocolatey, rich and decadent. Easy to make. Glad I found this great recipe to use some of my discard. Will definitely make this one again, maybe add some walnuts next time.

  5. 5 stars
    Giving 5 stars because it was my own fault these didn't turn out! I followed another person's comment and did 40% less sugar (120g granulated, 60g ish brown sugar) because I reduce the sugar in every dessert recipe I make. 40% was way too much and threw off the texture of the whole thing. They were very cakey after baking for 35 minutes. Needed the moisture content from the sugar! Next time I would do 25% reduced sugar.

  6. 5 stars
    I keep telling myself I need to come leave a review for these brownies. I give everyone who even semi-listens this recipe. It is the absolute best brownie recipe ever and everyone I've made them for agrees.

  7. I'm going to make these tomorrow and can't wait! but I only have salted butter on hand. is it ok to use that? should I leave out the salt if using salted butter?