I love finding new ways to use my sourdough starter, and these chocolate chip cookies have become a staple in my kitchen. The starter adds a subtle, complex tang that beautifully balances the sweetness of the chocolate, creating a cookie with real depth of flavor. I made a batch of these for a weekend get-together, and they were gone almost as soon as I pulled them from the oven.
This recipe produces a reliably chewy cookie with perfectly crisp edges and a soft, tender center. The active starter contributes not just flavor but also to that wonderful texture. It’s a straightforward recipe that feels special, perfect for anyone looking to put their bubbly starter to delicious use beyond a loaf of bread.
Why use sourdough starter in cookies?
The natural yeasts and bacteria in sourdough starter do more than just leaven bread; they create complex flavors through fermentation. In cookies, this introduces a subtle, pleasant tang that cuts through the richness and sweetness, making for a more balanced bite. The acidity also helps break down proteins in the flour, which contributes to a wonderfully soft and chewy final texture. It’s an easy way to elevate a classic recipe and add a layer of flavor you can’t get from any other ingredient.
The Importance of Softened Butter
For the ideal cookie texture, your butter must be softened correctly—not melted or cold. Softened butter should hold its shape but yield easily to gentle pressure. When you cream it with sugar, it creates tiny air pockets that give the cookies lift and a tender crumb. If the butter is too warm or melted, the dough will be greasy, and the cookies will spread too much in the oven, becoming thin and crispy instead of thick and chewy. I usually let mine sit at room temperature for about an hour before I start.
Choosing Your Chocolate
The quality of your chocolate makes a significant difference in the final cookie. I prefer using high-quality chocolate chips or roughly chopped chocolate bars, which melt into luscious pools instead of staying in tight little morsels. A mix of semisweet and dark chocolate (around 60-70% cacao) offers a great balance, providing both familiar sweetness and a deeper, richer flavor. Don’t be afraid to experiment with different types to find what you like best; it’s one of the easiest ways to customize your cookie.
Recipe Overview

- Prep Time: 15 minutes
- Cook Time: 12-15 minutes
- Total Time: 1 hour (including rest time)
- Servings: 24 cookies
- Difficulty: medium
Ingredients
- 240g (2 cups) all-purpose flour
- 120g (1/2 cup) sourdough starter, fed and bubbly
- 113g (1/2 cup) unsalted butter, softened
- 200g (1 cup) brown sugar, packed
- 100g (1/2 cup) granulated sugar
- 1 large egg, room temperature
- 1 teaspoon vanilla extract
- 1/2 teaspoon baking soda
- 1/2 teaspoon sea salt
- 270g (1 1/2 cups) chocolate chips
Step-By-Step Instructions

- Cream Wet Ingredients
In a large mixing bowl, cream together the softened butter, brown sugar, and granulated sugar with an electric mixer or by hand until the mixture is light and fluffy, about 3-4 minutes. Add the sourdough starter, egg, and vanilla extract. Beat until everything is well combined and the mixture looks smooth and slightly glossy.
- Combine Dry and Wet Ingredients
In a separate medium bowl, whisk together the all-purpose flour, baking soda, and sea salt. Gradually add this dry mixture to the wet ingredients, stirring with a spatula or on low speed just until the flour is incorporated. Be careful not to overmix, which can result in tough cookies.
- Fold in Chocolate Chips
Gently fold the chocolate chips into the dough with a spatula. Ensure they are evenly distributed throughout the batter. The dough will be thick and feel slightly sticky at this stage.
- Chill the Dough
Cover the bowl with plastic wrap and chill the dough in the refrigerator for at least 30 minutes. This step is crucial: it allows the flour to hydrate and the butter to firm up, which prevents the cookies from spreading too much and deepens their flavor.
- Preheat Oven and Prepare Pans
While the dough chills, preheat your oven to 350°F (175°C). Line two large baking sheets with parchment paper or silicone baking mats. This prevents sticking and promotes even browning on the bottom of the cookies.
- Portion the Dough
Using a tablespoon or a medium cookie scoop (about 1.5 tablespoons), portion the chilled dough into balls. Place them on the prepared baking sheets, leaving about 2 inches of space between each one to allow for spreading during baking.
- Bake Until Golden
Bake for 12-15 minutes. The cookies are done when the edges are set and golden-brown, and the centers still look slightly soft. They will continue to cook from the residual heat of the pan after you take them out.
- Cool and Serve
Let the cookies cool on the baking sheets for 5 minutes. This allows them to firm up enough to be moved. Then, transfer them to a wire rack to cool completely. They are wonderful warm but will develop an even chewier texture once fully cooled.
If you enjoy this dish, try our Perfect Chocolate Chip Cookie Recipe for a perfect pairing or next-weeknight option.
Substitutions & Variations
- Nutty Crunch: Add 115g (1 cup) of toasted, chopped pecans or walnuts along with the chocolate chips for extra texture and flavor.
- Different Chips: Swap the chocolate chips for white chocolate chips and 85g (3/4 cup) of macadamia nuts for a classic flavor combination.
- Warm Spice: Mix in 1/2 teaspoon of ground cinnamon with the dry ingredients for a subtle, comforting warmth.
Make-Ahead, Storage & Reheat
Store cooled cookies in an airtight container at room temperature for up to 5 days. For longer storage, you can freeze the baked cookies for up to 3 months. To reheat, warm them in a 300°F (150°C) oven for a few minutes until soft. You can also freeze the portioned dough balls and bake them directly from frozen; just add 1-2 minutes to the total bake time.
Nutrition
- Serving Size: 1 cookie
- Calories: 180
- Protein: 3g
- Fat: 8g
- Carbohydrates: 26g
- Note: Estimates only.
FAQ
Can I use sourdough discard instead of an active starter for cookies?
Yes, unfed discard works great. Your cookies might have a stronger sourdough tang and a slightly denser texture, as discard has less leavening power.
Why did my cookie dough spread too much in the oven during baking?
Overly soft butter is the most common reason for cookies spreading too much. Be sure to chill the dough thoroughly so the fat is firm, which helps them bake up thick.
Does resting the cookie dough in the fridge really make a difference?
Absolutely. Chilling the dough for a few hours hydrates the flour for a chewier texture. A longer rest allows the sourdough to develop a more complex, nuanced flavor.
Are sourdough cookies actually easier to digest than regular cookies?
They can be. The slow fermentation from the starter helps pre-digest some of the flour, which can make the cookies gentler on your system, especially after a long chill.
Will these cookies taste sour like sourdough bread, or just different?
They won't taste overtly sour. The starter adds a subtle, complex tang that balances the sweetness, much like buttermilk enhances flavor in other baked goods.
Is it better to freeze the baked cookies or the unbaked dough balls?
Freezing the raw dough balls gives you a fresher result. You can bake them straight from the freezer for that just-baked texture, adding a minute or two to the bake time.
Can I make this sourdough cookie dough without using a stand mixer at all?
Yes, you can definitely make these by hand. Use a sturdy spatula or wooden spoon to cream the butter and sugars, then mix everything else in. It just takes more effort.
Besides using up discard, why add sourdough starter to these cookies?
Sourdough starter adds a unique depth of flavor and a wonderfully tender, chewy texture. It also helps the cookies stay fresh and soft for a longer period of time.
Equipment
- Large mixing bowl
- Medium mixing bowl
- Electric mixer or hand mixer
- Spatula
- Plastic wrap
- Two large baking sheets
- Parchment paper or silicone baking mats
- Cookie scoop or tablespoon
- Wire cooling rack
- Oven
Ingredients
- 240 g (2 cups) All-purpose flour
- 120 g (1/2 cup) Sourdough starter fed and bubbly
- 113 g (1/2 cup) Unsalted butter softened
- 200 g (1 cup) Brown sugar packed
- 100 g (1/2 cup) Granulated sugar
- 1 large Egg room temperature
- 1 tsp Vanilla extract
- 1/2 tsp Baking soda
- 1/2 tsp Sea salt
- 270 g (1 1/2 cups) Chocolate chips
Instructions
- Cream together softened butter, brown sugar, and granulated sugar until light and fluffy, about 3-4 minutes.
- Add sourdough starter, egg, and vanilla extract; beat until smooth and glossy.
- In a separate bowl, whisk flour, baking soda, and sea salt.
- Gradually add the dry ingredients to the wet mix, stirring until just incorporated without overmixing.
- Fold in chocolate chips evenly.
- Cover the dough and chill in the refrigerator for at least 30 minutes.
- Preheat oven to 350°F (175°C) and line baking sheets with parchment paper or silicone mats.
- Portion dough into tablespoon-sized balls and place on prepared sheets with 2 inches of space between each.
- Bake for 12-15 minutes until edges are set and golden brown but centers remain slightly soft.
- Allow cookies to cool on sheets for 5 minutes, then transfer to a wire rack to cool completely.
