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Peanut Butter Cookies with Sourdough Recipe


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Peanut Butter Cookies are a delicious twist on an old American Favorite cookie. Including sourdough starter adds a deeper flavor with a bit of tang. 

Add Chocolate Chips or other varieties of baking chips for Bursts of sweet yummies in these flavorful peanut butter cookies. That adds even more flavor to these delicious desserts.

If you are a sourdough baker you know the sourdough discard can become a problem. Who wants to throw it out?? Not me. That is Money and good ingredients going down the drain.

And you have to wash that starter down the drain with a LOT of water.  If you don’t your pipes might get full of a gooey floury cement over time.

Since animals LOVE sourdough starter I really don’t think it belongs in the compost pile either. It attracts pests. Who needs that?

My solution is finding easy yummy recipes that use up sourdough discard in all it’s many phases. When you feed sourdough it goes through stages. So does the discard. Always check and see if your recipe requires an inactive or active starter for best results. These cookies have the advantage of using starter fed or unfed.

Looking for more sourdough recipe inspiration? Check out all of our sourdough breads and sourdough discard recipes Here.

I  made sourdough White Chocolate Cookies. They were a huge win. The family and office friends were all about those cookies. Our Soft Sourdough Molasses cookies are an AMAZINGLY flavorful sourdough discard cookie recipe. And just recently I created Peanut Butter OATMEAL cookies with sourdough discard. Boy are they Delicious.

Sourdough discard dessert recipes are usually pretty popular. The sourdough adds an intensity of flavor and a touch of tanginess that benefits sweet recipes.

These easy peanut butter cookies with sourdough are a big hit. I’ve made them in a couple of different ways now. So far they are good in all the variations I’ve tried.

Stay tuned. I have my eye on several more sourdough recipes for dessert. I need to use up that constantly growing sourdough discard. And we love dessert 🙂

Peanut Butter Cookies with sourdough starter on a cooling rack

Peanut Butter Cookies with sourdough have a deeper flavor with a hint of tang.

Peanut Butter Chocolate Chip Cookies With Sourdough Recipe:

This is an easy dessert recipe. That’s why I enjoy these cookies so much. This recipe is easy for me and popular with the family. 

…And I can use up sourdough starter in almost any stage. That said. Your starter stage of development will affect the flavor of these cookies.


  1. Fully active starter will certainly puff the cookies up more. If your using starter that’s been unfed in your fridge several weeks don’t expect much puffing up. But you WILL have a lot of strong tangy sourdough flavor in your cookies. So if you want more flavor use an older unfed starter.
  2. That’s where the baking chips come in. HINT: They work really well with tangy flavored starter.
  3. However, This is a basic recipe that you can choose to tweak if you prefer. Use the baking chips. Or not. Your choice.
  4. I use creamy peanut butter. I just do. You can use chunky peanut butter if you love it. Up to you. I do recommend a sweet peanut butter. If you don’t use sweet peanut butter the cookies may taste bland. Try adding more sugar to your recipe.
  5. I do use granulated sugar in this recipe. For the dipping of the dough balls and criss cross pattern dipping in sugar works best for me.

    soft and chewy sourdough peanut butter cookies-pin image

    Our soft and chew sourdough peanut butter cookies are simple to make and a great way to use your sourdough starter. This recipe full of rich flavor and freezer friendly. #peanutbuttercookies #easy #chewy #sourdough #starter #recipe

Tips for evenly baked cookies:

Cookie dough bakes best when it is evenly sized and placed evenly apart on your baking sheet. I recommend these steps to control the size and separation of your cookies.

  1. line your baking sheets. I use silicone matts. I really like the ones with the cookie spacing marked on them. My cookies are much more evenly baked now. I can easily see if the cookie size and spacing are correct.
  2. Use the correct sized cookie scoop. Using a spoon or other utensil may work to make cookies. But for the BEST cookies that are evenly baked. Please use a cookie dough scoop. they are SO worth it.
  3. sourdough peanut butter cookies raw

    sourdough peanut butter cookies are MUCH easier to get evenly baked if your baking sheet is lined with a marked silicone matt.

Other versions of this peanut butter cookie recipe you may want to try:

I chose to make these without the chocolate chips this time. That’s why your not seeing any chips in the cookies. The chocolate chips are optional.

These cookies are great plain or with chocolate chips. They are ALSO good with white chocolate chips or peanut butter chips. And they may taste great with other chips as well.

Please let us know how you make this recipe. Comment in the comment section and rate this recipe. How did it go for you? What did you do with it?

Peanut Butter Cookies with sourdough and chocolate chips

Peanut Butter Cookies with sourdough and chocolate chips. A tasty variation.

Yield: This cookie recipe makes about 50 cookies. UNLESS you add the chocolate chips. Then add another dozen cookies to the count. If you don’t need that many you can divide the recipe in half.

Stored in an airtight jar these cookies will stay fresh several days to up to a week.

Freeze these peanut butter cookies. Here’s How:

  1. Place your extra COOLED and set cookies into a heavy duty freezer ziplock bag.
  2. SUCK out all the air with a straw. Or suck it out through the uncompleted seal and then seal it fast.
  3. Label the bag with the recipe name and date.
  4. Freeze for up to two months.

Your Printable Recipe:

sourdough peanut Butter Cookies
Yield: 50 cookies

Peanut Butter cookies With Sourdough Starter

Prep Time: 15 minutes
Cook Time: 10 minutes
Total Time: 25 minutes

Peanut Butter Chocolate Chip Cookies are a delicious twist on an old American Favorite cookie. Including sourdough starter adds a deeper flavor with a bit of tang.  Bursts of sweet chocolate in these flavorful peanut butter cookies make a good cookie great.


  • 1 cup sourdough starter -240 grams
  • 1 cup peanut butter - 255 grams
  • 1/2 cup organic coconut oil (or butter)-softened - 112 grams
  • 1 cup brown sugar (firmly packed)- 175 grams
  • 2 eggs - 103 grams
  • 1 tsp. vanilla extract - 4 grams
  • 2 cups flour 256 grams
  • 1 tsp. baking powder - 5 grams
  • 1 tsp. baking soda- 6 grams
  • 1/2 tsp. salt -3 grams


  • 1 cup (165 grams)to 2 cups (315 grams) flavored baking chips (optional-choose any kind you like)


Preheat Oven to 350 Degrees F.

In a large mixing bowl: Mix together the brown sugar, peanut butter, vanilla and softened coconut oil.

Add in the sourdough starter, and eggs. Mix Gently until combined.

In a smaller mixing bowl Sift together the dry ingredients (except the chips).

Add the dry ingredients into the wet in thirds, mixing after each addition.Peanut Butter Cookie Dough

Finally add the baking chips (if using) and mix by hand until dispersed into the dough.

Roll the dough into one inch balls.

OPTIONAL: For more sweet roll the cookie balls in sugar now.

Place each ball 2 to three inches apart on your lined baking sheet. They will expand and need room on the sheet.

Using a fork dipped in sugar gently press the fork into the dough balls and criss cross the dough balls as shown.sourdough peanut butter cookies raw

Bake 9 to 10 minutes until the cookies are LIGHTLY browned. Notice the increase in cookie size when baked. Sourdough Peanut butter Cookies Baked

Remove from oven and let sit 5 minutes.

Remove to cooling racks. Serve.

sourdough peanut Butter Cookies


The stage of your starter Matters:

  • A fully fed and active starter with a mild fruity smell will offer a less intensely flavored cookie that puff more.
  • An unfed or tangy starter will enhance the flavor of these cookies but the cookies will not be as cake like.

The AMOUNT of your starter matters too.

I've made this recipe with only half the starter amount called for and the cookies turned out great. They DO have less puff and a bit more peanut butter flavor if that is what your after.

I have yet to make these (and I make them all the time) and turn out what WE think is a bad cookie.

That's why you see so many notes. Sourdough personalizes this and other recipes. Your starter is different than mine. Do what works for you.

For flatter cookies:

Eliminate the baking powder and baking soda. The starter will still give some leavening.

For puffy cookies that are sweeter:

  1. Use a freshly fed or recently fed starter
  2. Add 1/4 to 1/2 Cup granulated sugar to taste
  3. Use a sweetened peanut butter

The chocolate chips are optional.

They may be omitted or replaced with other baking chips you may prefer. Some good choices are white chocolate chips and peanut butter chips.

Nutrition Information



Serving Size


Amount Per Serving Calories 106Total Fat 6gSaturated Fat 2gTrans Fat 0gUnsaturated Fat 3gCholesterol 7mgSodium 99mgCarbohydrates 12gFiber 1gSugar 4gProtein 2g

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Sunday 4th of October 2020

The flavor of these cookies is incredible! Is there any way to make them more chewy! We’re not a huge fan of cakey cookies.

Kayti Lavergne

Sunday 4th of October 2020

Hi Sydney, To make them less cakey you can omit the baking powder or use a starved starter. (this means a starter not fed at LEAST a week. If it separates just stir the starter and use it. This will also increase the tangy flavor). Also I undebake mine since I also love the flatter chewier cookies. Hope this helps. Thanks for the feedback and question.

Sara T

Tuesday 4th of August 2020

These cookies look so yummy! I was wondering how they would hold up doing a 72 hour cold ferment, so all the flour is able to be fermented by the wild yeast. I have not been able to find many recipes that do a do a long ferment with active starter. Thanks, Sara

Sara T.

Tuesday 5th of January 2021

@Diane, Hi, Diane. I used bubbly fed starter, 1 cup, and omitted the baking powder and soda. I didn't add the suggested extra sugar but i did add about a half cup of powdered PB (PBFit). In my experience fermented cookies are puffy and cakey so I pressed them thinner than I would normally.

The way I made this recipe the cookies tasted more like a lightly sweetened PB biscuit to eat with coffee or tea. The PB flavor wasn't strong.

Because the starter was soo bubbly and I used the full amount. I fermented the dough for 48 hours instead of 72 hours. out of the fridge i cooked them for 17 min.

Thanks! I'm going to keep experimenting with it.


Tuesday 4th of August 2020

Hi Sara T, I've never long cold raised this dough. Sourdough discard recipes don't usually do that. HOWEVER. I think you can. But reduce the sourdough starter by half. (at least a third) It will more than likely ferment into mini breads if you don't. :) And use UNFED starter so they don't get too puffy. Please let me know how it goes.


Thursday 11th of June 2020

I just made these using half the quantum of the recipe and I also replaced half of the flour with medium oatmeal. The cookies turned out great. Chewy and very moorish! Thank you for the recipe!

Jane hogg

Thursday 18th of June 2020

That sounds like a great idea- I'm going to try that variation today!


Thursday 11th of June 2020

Your Welcome Franziska, Thanks so much for letting us know how you made it work for you. I just posted my versions of sourdough peanut butter oatmeal cookies. You might enjoy those too. Happy Baking!


Tuesday 2nd of June 2020

This looks great! Thank you! Might you have a good sourdough oatmeal peanut butter choc chip cookie recipe?


Tuesday 2nd of June 2020

Well now that you mention it. Not yet. But I'll get starter on it today. In the meantime try adding 1/2 cup oatmeal and if it's too dry throw in an extra egg? I'll try this today and let you know how it goes. Thanks for the great idea. :)


Saturday 30th of May 2020

Was this recipe designed by volume or weight? I'm about to make these, and I need to know which measurements to use- 2 cups flour isn't 330g...


Saturday 30th of May 2020

I've updated the recipe for you. The weights are now correct. Thanks for bringing this to my attention. Happy Baking!


Saturday 30th of May 2020

Hi N, This recipe was originally in volume measurements. The last time I made it (about a week ago) I converted it to weight measurements as I baked from the volumes. It turned out great! So all I can say is I may have made a mistake in the written conversion. So I'll make them again tonight using my own weights to test it again. In the meantime why don't you try it with the volumes.