Sourdough Chocolate Chip Cookies

If you’re like 90% of the population who started making sourdough bread during the confinement, you may be looking for ways to use that sourdough discard. For those of you who are familiar with sourdough starters, you know how hungry they can get. Normally, I just shrug this off and know that’s it’s a small cost to have great sourdough bread. Yet due to the current food shortages and how hard it is to find basic ingredients, I cringe every time I have to toss some of my starter. So when The Boy Who Bakes posted a recipe for sourdough chocolate chip cookies, I knew I had to try it.

picture of chocolate chip cookies

Baking with Sourdough Waste

So sourdough discard is basically 50% water & 50% flour. Hypothetically, you could use discard in any recipe that has flour and a liquid. Yet chocolate chip cookies don’t have any liquids, other than butter, so how do you add in the sourdough discard? One simple answer – browned butter. In Europe, butter is a minimum of 82% fat, the rest is water. So if you brown your butter before using it, you’re essentially getting rid of the water, which you can then replace with another liquid. In our case – sourdough discard.

picture of chocolate chip cookies

What kind of chocolate?

The initial recipe calls for 500g of dark chocolate chips (3 US cups). When I first made these cookies, I added all 500g however the dark chocolate was too overpowering. So I pulled back the dark chocolate to 300g and then did 50/50 dark and milk chocolate. If you really do prefer dark chocolate, I would still only do 300g of chocolate.

You can use chocolate chips if you wish. They work just fine. I personally chopped up a tablet of chocolate. Then I added some chocolate callets, to play upon the different textures of the two.

Picture of chocolate chip cookies

How do I brown butter?

Browned butter is amazing. It can change dishes so easily yet I feel isn’t used very often. Melt the butter in a medium sized pan on medium high heat. The butter will start to foam, which is normal. Keep it on heat and the foam will subside. At this point you’ll want to watch it like a hawk, as it can burn before you know it. At the bottom of the pan, you should see little brown specks which are the milk solids. When you see that, it means that the water has evaporated and you can take it off of the heat.

Sourdough Chocolate Chip Cookies

Based off of The Boy Who Bakes recipe, this sourdough chocolate chip cookie recipe is one to hold on to!
4.67 from 12 votes
Print Pin Rate
Course: Dessert
Cuisine: American
Keyword: Chocolate Chip, Cookies, Sourdough
Prep Time: 15 minutes
Cook Time: 18 minutes
Resting Time: 1 day
Total Time: 1 day 33 minutes
Servings: 24 cookies
Calories: 281kcal


  • 225 g butter
  • 380 g all-purpose flour, type 45
  • 1 tsp baking powder
  • 1 tsp baking soda
  • 1 tsp sea salt
  • 220 g granulated sugar
  • 220 g light brown sugar
  • 3 large egg yolks
  • 240 g sourdough starter discard
  • 1 tsp vanilla extract
  • 150 g dark chocolate, roughly chopped
  • 150 g milk chocolate, roughly chopped


Cookie Dough

  • Chop the butter into cubes and brown in a medium sized sauce pan on medium high heat.
  • Let chill for 30 minutes
  • In a medium bowl, whisk together the flour, baking powder, baking soda and salt. Set aside.
  • In the bowl of a mixer, add the sugar and butter, then cream until light and fluffy, about 2-3 minutes.
  • Add the egg yolks and mix for an additional 3 minutes, scraping down the sides of the bowl half way through.
  • Add the starter and vanilla, then mix until fully combined. It should be smooth and look like a cake batter.
  • Add the flour in three additions, scraping down the sides after each one.
  • Add the chopped chocolate and mix until just combined.
  • Cover the bowl in plastic wrap and let rest in the fridge for 24 hours.


  • Preheat the oven to 180°C (355°F) and prepare a couple of cookie sheets.
  • Roll the dough out into 70g balls and place on the prepared cookie sheets with ample room between them, so they don't touch during baking.
  • Bake for about 16 minutes. The edges of the cookies should be slightly browned and the centers puffed up.
  • **Tip** If the cookies are a little out of shape, you can use a round cookie cutter that's a tad bigger than the cookie to 'nudge' it back into shape as soon as you remove them from the oven.
  • Let cool for about 10 minutes prior to transfering to a cooling rack.
Tried this recipe?Mention @mysecretconfections or tag #mysecretconfections!


  • Store in a sealed container for no longer than 4 days
  • You can freeze the cookie dough prior to baking for up to a month
  • Bake frozen cookie dough balls for about 18-20 minutes.


Calories: 281kcal | Carbohydrates: 39g | Protein: 3g | Fat: 13g | Saturated Fat: 8g | Cholesterol: 45mg | Sodium: 234mg | Potassium: 97mg | Fiber: 2g | Sugar: 23g | Vitamin A: 269IU | Calcium: 31mg | Iron: 2mg
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65 thoughts on “Sourdough Chocolate Chip Cookies”

  • 5 stars
    These are fantastic! I followed the recipe exactly and used rye/AP starter. The taste and texture are both perfect.

    • Thank you Erin, I am so happy that the recipe worked out! Ohhh I’m intrigued about the rye/ap starter. I just might have to go try that! Thank you for stopping by!

    • It doesn’t have to be chilled for 24 hours, I would let it chill for at least 2 hours though as it helps the flavors meld a bit! Enjoy!

  • 5 stars
    I usually just make the recipe on the back of the chocolate chips, but I’ve always got massive amounts of sourdough discard so I had to try these. THEY ARE THE BEST!!! Ive never made a better chocolate chip cookie. Perfect amount of chocolate, and the brown butter makes them even better. Thank you so much for sharing 😁

    • Is it 225g of browned butter or 225g before it’s melted and browned? I have a jar of melted browned butter and not sure how much to pour out for the recipe. Thank you sir your help.

  • I was so excited to try this recipe because although I’m gluten intolerant, my body can handle sourdough; unfortunately, I didn’t check that the conversions to “US customary” were accurate, so I ended up using double the amount of flour required and the cookies were quite dense (380g is closer to 1.5 cups, but the conversion lists 3 cups). Will try again with the correct amounts!

    • Thank you for your comment. I think the issue may lie in how packed a cup of flour is. A sifted cup won’t weigh the same as a scooped cup etc. A cup of flour is about 120-140g depending on how it’s scooped, which is quite a wide range. This is why I am a strong advocate for using the metric system when baking! 😊 128grams will always weigh exactly the same no matter how you scoop it and ensures you always have tasty treats that turn out right! Hope the recipe turns out the next time you try it!

  • 5 stars
    When you “chill” the melted butter – are you letting it cool on a counter or chill in the fridge?

    • Hello Briana,

      Either works, it depends on how much of a rush you’re in. Ideally you want the butter to be about room temperature if not a bit colder, but not completely solid! Let me know if you have any other questions!

  • 5 stars
    My new favorite chocolate chip cookies…maybe of all time?? I have made these four times in the last month. I have gotten two friends hooked on making them too. They’re addicting. Sourdough discard is SUCH a good excuse to make cookies.
    I usually just use semisweet chocolate chips for the entire chocolate amount and have no complaints!
    Thank you for the recipe!

  • 5 stars
    I made these for the first time the other week and didn’t use baking powder and they turned out better than when I made them for the second time with both baking soda and powder.

  • 5 stars
    After recently receiving a sourdough start from a friend, I was wondering what to do with all the discard. I was sent this recipe and was immediately intrigued by it.

    I tried it today and the results were great. The cookies spread out a little more than expected – I formed small balls about 3″ apart from each other – but suspect this is because I used about 2/3 browned butter and 1/3 canola oil (I also baked at 375ºF for 15m). The end result was nicely browned cookies which are crunchy on the exterior and chewy on the interior, after reaching room temperature.

    Look forward to trying this recipe again in the future, and possibly experimenting with the ratio of oil:butter since I like the thinner, crispy cookies that it resulted in.

    • Thank you for your feedback! Glad to hear that you enjoyed the recipe, let us know how the experimenting goes!

  • When adding the browned butter to cream with the sugar do you include the browned bits from the bottom of the pan?

    • Hello Jackie! It is entirely up to you! You can strain out the browned bits or leave them in. I tend to strain them if they’ve browned a bit too much and have a bitter taste, if not you can leave them in. I find that when it’s perfectly browned, it adds a bit of extra nuttiness to the cookies! Hope this helps!

  • I only have all purpose flour, whole wheat flour and dark rye flour. Can I use all purpose flour in this recipe? I’ve read two different ways and am not sure what to do. One says remove 2 tbsp flour per cup of all purpose, and one says remove 2 tbsp flour and add 2 tbsp cornstarch for each cup of all purpose.

        • Oh! That is just the flour equivalent here in France! As that is where I’m based and I do have quite a few local followers, I make sure that they can also follow along with the recipes! Happy baking!

    • Hello Kaylee, Thank you for your comment. I have never tried with a full active sourdough. If you make them with an active sourdough, my main concern would be the sourdough flavor being too prominent and the dough raising too much. If you use an active sourdough, rather than the discard, I would suggest not letting it rest too long. You don’t want the dough to over-raise! Let me know how it goes!

      • 5 stars
        I was unable to to get the butter and sugar to cream. It was very wet and crumbly, like wet sand. I continued adding the ingredients as instructed, and it is in the refrigerator as we speak. I don’t know if the under creamed butter and sugar will affect the bake or not. Did I do something wrong?

        • Was your browned butter cooled down? I’d pop it in the fridge to make sure that it’s cooled down enough prior to trying to cream. Hope this helps!

  • 1 star
    Mine turned out nothing like the picture. The cookies were a very cakie texture. The taste was on. The texture was off. I followed the instructions measuring my ingredients. Did your cookies turn out like the recipe picture? Curious if I did something wrong.

    • Hello Rachel, I am sorry they didn’t turn out for you! I have never had a batch that has let me down, the photos were taken by me using this exact recipe. Did you measure with imperial or metrics measurements?

  • 5 stars
    These are amazing. I’m so thrilled to have wonderful sourdough cookies to share with my gluten sensitive grandkids. 😊 I have made these many many times now, usually just with semisweet chips since i always have some of those. I’m an RN at a local hospital so after a12 hour shift, there is definitely no baking happening. I have found i can leave these fermenting in the fridge for up to 3 full days and they are still just at amazing. VERY HELPFUL with an every changing work schedule. Thank you!!

    • I use unsalted, however if you only have salted on hand, I would just leave out the salt in the actual recipe. Hope this helps!

  • 5 stars
    My first sourdough discard recipe and it Turned out great! I didn’t even have all the right chocolate so it could’ve been* even better!

  • 5 stars
    These are unreal! I may make them too much but they don’t last so that’s a good sign! Thanks for sharing!

  • These are my favorite cookie and I feel like a boss lady making them! LOL! Question: can we freeze them instead of making an entire batch at once. I would like to pull them out when we feel like a warm gooey cookie. Or should I put them in the fridge?
    If the freezer, how long would you cook them for?

    • Yes, you can definitely freeze them! I would freeze them in balls and bake fresh when needed. The baking time doesn’t change too much, just add a couple minutes and check!

  • 5 stars
    Best choc chip cookies I’ve ever made!!! I made this for a community event and everyone was raving about them and I was very sad because they all disappeared very quickly haha. It was a labour of love that was worth it!

    Only thing is I found that in my oven the cook time was too long so the first batch was too browned. All ovens are different though so just be sure to watch them closely near the end. I found 14 minutes was perfect. Even though the first batch was too browned, the consistency throughout the cookie was still perfect. It wasn’t too hard in the slightest, it was more an aesthetic thing for me.

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