Brownie Batter Sourdough Cookies

Highlighted under: Quick Dessert Ideas

I absolutely love making these Brownie Batter Sourdough Cookies because they combine two of my favorite treats into one delightful experience. The combination of the rich, fudgy brownie batter with the tangy notes of sourdough gives these cookies a unique flavor that’s hard to resist. Each bite melts in your mouth, with a perfect balance between chewy and gooey. I can never seem to keep these around for too long because everyone loves them! They make for a wonderful dessert or a sweet snack at any time of the day.

Emily

Created by

Emily

Last updated on 2026-01-27T10:09:27.627Z

When I first decided to experiment with sourdough in my cookie recipes, I was unsure how the flavors would mix. However, after a few trials, I discovered that the slight tang adds depth to the sweetness of the brownie batter, elevating these cookies to new heights. Each batch has become a hit with my family and friends, and I often find myself doubling the recipe to satisfy their cravings.

One little tip that I found helpful is to let the dough chill for at least an hour before baking. This not only enhances the flavors but also helps the cookies maintain their shape while baking, resulting in perfectly chewy centers and crisp edges. Trust me, it's worth the wait!

Why You'll Love These Cookies

  • Rich brownie flavor with a unique sourdough twist
  • Chewy texture with crispy edges
  • Perfect for any time snack or dessert
  • Easy to make with simple ingredients

The Role of Sourdough Starter

Using sourdough starter in these cookies not only adds a unique tangy flavor but also contributes to the cookie's tender and chewy texture. The wild yeast and bacteria present in the starter create a lovely depth of flavor that elevates the traditional brownie experience. If you're using discard, it’s the perfect way to incorporate leftover starter without waste. Just make sure it’s active and bubbly for the best results, which helps improve the rise and overall texture of the cookies.

If you're looking for a gluten-free option, you can try substituting the all-purpose flour with a gluten-free blend. However, be cautious since not all blends behave the same. Look for one that includes xanthan gum or is specifically formulated for baking, as this will help mimic the original cookie's chewy texture.

Baking Tips for Perfect Cookies

When baking these cookies, be sure not to overmix the dough once you've added the dry ingredients. Mixing just until combined will prevent the cookies from becoming tough and ensure they remain chewy. As a guideline, you'll want to see the flour disappear but still have hints of visible cocoa powder—this means you've mixed enough without losing that luscious texture.

For an even bake, use a cookie scoop or a tablespoon to ensure uniform size. This allows the cookies to bake at the same rate, resulting in uniformly chewy and gooey centers. Keep an eye on them in the oven; when the edges look set and the centers appear slightly underbaked, it’s time to take them out, as they will continue to firm up while cooling.

Cooling and Storage Recommendations

Letting the cookies cool on the baking sheet for a few minutes is crucial; this time allows them to firm up before transferring to a wire rack. If you move them too quickly, they might spread out or lose their shape. Once cooled completely, you can store them in an airtight container at room temperature for up to five days, keeping them fresh and chewy.

For longer storage, these cookies freeze beautifully! Place them in a single layer on a baking sheet in the freezer until solid, then transfer to a freezer-safe bag. They can last up to three months. When you’re ready to enjoy, simply remove a cookie and let it thaw at room temperature, or pop it in the microwave for a few seconds for a warm and melty experience.

Ingredients

Gather these simple ingredients to make your Brownie Batter Sourdough Cookies:

For the Cookies

  • 1 cup all-purpose flour
  • 1/2 cup unsweetened cocoa powder
  • 1/2 teaspoon baking soda
  • 1/4 teaspoon salt
  • 1/2 cup unsalted butter, softened
  • 1 cup brown sugar
  • 1/2 cup granulated sugar
  • 1 large egg
  • 1 teaspoon vanilla extract
  • 1 cup sourdough starter (discard is perfect)
  • 1 cup semi-sweet chocolate chips

Be sure to always measure your ingredients accurately for the best results!

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Instructions

Follow these simple steps to bake your delicious cookies:

Preheat the Oven

Preheat your oven to 350°F (175°C) and line a baking sheet with parchment paper.

Mix Dry Ingredients

In a bowl, whisk together the flour, cocoa powder, baking soda, and salt. Set aside.

Cream Butter and Sugars

In a large mixing bowl, cream together the softened butter, brown sugar, and granulated sugar until light and fluffy.

Add Egg and Vanilla

Beat in the egg and vanilla extract until well combined.

Combine with Sourdough Starter

Mix in the sourdough starter until fully incorporated.

Blend in Dry Ingredients

Gradually add the dry ingredients to the wet ingredients, mixing until just combined. Stir in the chocolate chips.

Scoop and Bake

Scoop tablespoons of dough onto the prepared baking sheet. Bake for 10-12 minutes, until the edges are set but the centers are still soft.

Cool and Enjoy

Remove from the oven and let the cookies cool on the baking sheet for a few minutes before transferring them to a wire rack.

Enjoy your cookies warm or at room temperature!

Pro Tips

  • For an even richer flavor, consider adding a pinch of espresso powder to intensify the chocolate notes.

Ingredient Variations

Feel free to experiment with the type of chocolate chips you use. Dark chocolate will enhance the richness of the brownie flavor, while white chocolate can add a sweetness that balances the tang from the sourdough. You can also swap in nuts, like walnuts or pecans, for added crunch and flavor, but keep in mind this will alter the overall texture.

If you’re in the mood for a little extra sweetness, consider adding a swirl of peanut butter or Nutella to the dough. Just dollop in small amounts and use a knife to create swirls without fully mixing it in. This will give you delicious pockets of flavor with every bite.

Serving Suggestions

These cookies are fantastic on their own, but you can elevate serving them with a scoop of vanilla ice cream or a drizzle of warm chocolate sauce for an indulgent dessert. For a more sophisticated touch, serve them alongside a fresh fruit salad or berries to balance the richness of the cookies.

You could also make a cookie sandwich by using two cookies to hug a scoop of your favorite ice cream in between. This makes for a delightful treat for parties or gatherings and is something everyone will enjoy, merging that brownie and ice cream experience perfectly!

Questions About Recipes

→ Can I use active sourdough starter instead of discard?

Yes, you can use active sourdough starter. Just make sure it is well-fed and bubbly for the best results.

→ How do I store leftover cookies?

Store any leftover cookies in an airtight container at room temperature for up to a week.

→ Can I freeze the cookie dough?

Absolutely! You can freeze the cookie dough for up to 3 months. Just thaw in the refrigerator before baking.

→ What can I substitute for butter?

You can replace the butter with coconut oil or a vegan butter alternative for a dairy-free version.

Brownie Batter Sourdough Cookies

I absolutely love making these Brownie Batter Sourdough Cookies because they combine two of my favorite treats into one delightful experience. The combination of the rich, fudgy brownie batter with the tangy notes of sourdough gives these cookies a unique flavor that’s hard to resist. Each bite melts in your mouth, with a perfect balance between chewy and gooey. I can never seem to keep these around for too long because everyone loves them! They make for a wonderful dessert or a sweet snack at any time of the day.

Prep Time20 minutes
Cooking Duration12 minutes
Overall Time32 minutes

Created by: Emily

Recipe Type: Quick Dessert Ideas

Skill Level: Intermediate

Final Quantity: 24 cookies

What You'll Need

For the Cookies

  1. 1 cup all-purpose flour
  2. 1/2 cup unsweetened cocoa powder
  3. 1/2 teaspoon baking soda
  4. 1/4 teaspoon salt
  5. 1/2 cup unsalted butter, softened
  6. 1 cup brown sugar
  7. 1/2 cup granulated sugar
  8. 1 large egg
  9. 1 teaspoon vanilla extract
  10. 1 cup sourdough starter (discard is perfect)
  11. 1 cup semi-sweet chocolate chips

How-To Steps

Step 01

Preheat your oven to 350°F (175°C) and line a baking sheet with parchment paper.

Step 02

In a bowl, whisk together the flour, cocoa powder, baking soda, and salt. Set aside.

Step 03

In a large mixing bowl, cream together the softened butter, brown sugar, and granulated sugar until light and fluffy.

Step 04

Beat in the egg and vanilla extract until well combined.

Step 05

Mix in the sourdough starter until fully incorporated.

Step 06

Gradually add the dry ingredients to the wet ingredients, mixing until just combined. Stir in the chocolate chips.

Step 07

Scoop tablespoons of dough onto the prepared baking sheet. Bake for 10-12 minutes, until the edges are set but the centers are still soft.

Step 08

Remove from the oven and let the cookies cool on the baking sheet for a few minutes before transferring them to a wire rack.

Extra Tips

  1. For an even richer flavor, consider adding a pinch of espresso powder to intensify the chocolate notes.

Nutritional Breakdown (Per Serving)

  • Calories: 380 kcal
  • Total Fat: 26g
  • Saturated Fat: 15g
  • Cholesterol: 195mg
  • Sodium: 85mg
  • Total Carbohydrates: 32g
  • Dietary Fiber: 3g
  • Sugars: 24g
  • Protein: 6g