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Peanut Butter Cookies Sourdough Recipe

Peanut Butter Cookies with Sourdough are a delicious twist on one of America’s favorite cookies. It is easy to make and provides a great way to use up sourdough discard which gives a delicious depth of flavor that livens up the soft cookies, and balances out the sweet peanut butter.

These scratch made cookies are made with high quality ingredients that yield fluffy, perfectly baked cookies every time. This recipe is one of our favorites and it’s become a staple treat in our home. We know you will love it too!

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

Sourdough Peanut Butter Cookies Stacked

Why put Sourdough Discard in cookies?

Using sourdough starter discard to bake may seem like an unnecessary addition, but it’s actually a very beneficial way to use up your extra sourdough discard. Sourdough discard will help bring more rise and life to your baked goods because of the presence of live yeast that it contain. Many recipes, like pancake, will be fluffier and fuller.

A sourdough discard also brings a scrumptious depth of flavor and slight tanginess that balances out sweet baked goods.

Should the starter be fed or unfed for discard cookies?

When baking with sourdough discard, the recipe you are using will determine if you need the starter to be fed or unfed. Some recipes require a more active discard that isn’t lively enough to bake bread with, but freshly fed and lively enough to give the recipe some structure.

These cookies have the advantage of using starter fed or unfed, so you can choose when you want to use the starter discard. The final result may lead to a stronger flavor or a more mild flavor depending where your discard is.

Are Sourdough Cookies better for you?

Sourdough can be digested easier than plain white wheat flour. Sourdough is nutrient rich and can ease digestion and absorption of certain nutrients. The Lactic Acid that is present in sourdough helps aid in the breakdown of bacteria. Here is a great article on health pros and cons of sourdough.

So while sourdough itself is easier to digest, lower in gluten and contains important probiotics; cookies themselves can hardly be considered healthy. Using a sourdough discard can help lower the amount of white flour needed in a recipe, though it won’t usually replace all of it.

Is Levain the same as Sourdough?

Levain is a subset of sourdough. Levain is a French term meaning leaven or yeast. It refers to the active culture of yeasts used in baking, such as bread dough, sourdough starter, and beers. Yeast cultures are made up of live organisms that start fermenting dough, causing it to rise. A leavened loaf of bread contains yeast cells; they help make bread rise.

What can I do with Discarded Sourdough Starter?

Sourdough discard is the leftover starter that remains after feeding the starter. Discard is inevitable when it comes to sourdough baking. Here are a few of our favorite options to use up sourdough discard rather than discarding it.

  1. Sourdough Waffles
  2. Sourdough Pancakes
  3. Sourdough Banana Bread
  4. Sourdough Cinnamon Rolls
  5. Sourdough Molasses Cookies
  6. Sourdough Pretzels
  7. Sourdough Bagels
  8. Sourdough English Muffins
  9. Sourdough Pie Crust
  10. Sourdough Muffins

Can you Freeze Sourdough Cookie dough?

Sourdough cookie dough can be frozen. Sourdough freezes really well and can be baked from from a frozen state. Freezing sourdough cookie dough can be accomplished in a few simple steps.

  • Portion out dough
  • Roll dough into cookie sized balls
  • Place dough on parchment paper on a cookie sheet
  • Place in freezer and flash freeze for 1-2 hours until frozen solid
  • Remove dough balls from the freezer
  • Place dough balls in airtight freezer container or bag
  • Ensure all air is out of the container
  • Label date on container
  • Place in freezer and freeze up to 3 months.
  • Bake according to baking instructions straight from the freezer

Looking for more sourdough recipe inspiration? Check out all of our Sourdough Breads and Sourdough Discard Recipes here.

Sourdough White Chocolate Cookies are decadent and sure to be a favorite. Our Soft Sourdough Molasses cookies are a flavorful sourdough discard cookie recipe that bring traditional molasses cookies into a new generation. Peanut Butter Oatmeal Cookies with Sourdough Discard have a heartier, satisfying texture with that same delicious, deep flavor.

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

You can use sourdough starter in almost any stage, but keep in mind if your starter is very weak it may affect the flavor of these cookies. They will still be scrumptious, just maybe not as vibrant and strong.


  1. Fully active starter will 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 certainly have a strong tangy flavor in your cookies. So if you want more flavor use an older unfed starter.
  2. If you want to incorporate chocolate chips, they pair well with a tangy starter.
  3. Creamy peanut butter will give you a smooth, pleasant texture. You can use chunky peanut butter if you prefer, but be sure it’s a peanut butter with some added sweetener. An all natural peanut butter will likely yield bland cookies that will need extra sugar.
  4. Use granulated sugar for the dipping of the dough balls and criss cross pattern to give them that iconic peanut butter cookie look.

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 the baking sheets with parchment paper, or use silicone matts. We really like the ones with the cookie spacing marked on them. Cookies bake evenly and they are snap to use.
  2. Use the correct sized cookie scoop. Please use a cookie dough scoop to ensure uniform amounts of dough for every cookie every time.
Sourdough Peanut Butter Cookies Raw
sourdough peanut butter cookies are evenly baked if your baking sheet is lined with a marked silicone mat.

What can I add to my Peanut Butter Cookies?

Add your favorite baking chips to give these cookies even more. We love white chocolate chips, traditional chocolate chips, even butterscotch chips. Peanut butter cookies can definitely hold their own, but they are also a great cookie to build on.

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 baking chips. If you do, 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.

Can I freeze Peanut Butter Cookies?

Cookies usually freeze and store very well when properly packaged. They make great treats that can be enjoyed shortly after bringing them out of the freezer and allowing them to thaw for a short while. Here’s how to freeze your Peanut Butter Cookies

  1. Allow you cookies to fully cool and gently place them into a heavy duty freezer ziplock bag.
  2. Remove all of the air from the bag.
  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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Sourdough Discard Peanut Butter Cookies-Pin Image
These scratch made cookies are made with high quality ingredients that yield fluffy, perfectly baked cookies every time. This recipe is one of our favorites and it’s become a staple treat in our home. We know you will love it too!


Tuesday 28th of March 2023

Completely missed in the recipe header that this recipe makes 50 cookies! I made my cookies 60g each so I got 20 cookies from the recipe. Had to bake them for way longer than 10min! Would’ve been handy if the amount of cookies this recipe makes was also written in the method when rolling them out. Other than that they were delish!


Tuesday 28th of March 2023

Hi Daria, Wow! lol. I bet those cookies were super sized. :) We are happy to hear you enjoyed them. I'll take a look at the recipe and see how it can be made more clear for the future. Thanks so much for the feedback. Happy Baking!

Zue Wray

Sunday 28th of August 2022

...Made in food processor. It was quicker. Used salted butter, unfed discard and added 60g of pure dark cocao powder Not add baking powder and baking soda or salt. Refrigerate for 3-4 hours or overnight for better flavour. Slice and roll into balls. Baked at 200°C for 11 min. Turned out absolutely delicious. This is a keeper. Thank you so much for your recipe


Monday 29th of August 2022

Your welcome! So happy you enjoyed it. :)

Paula McDaniel

Wednesday 25th of May 2022

Made these cookies 3x's now Excellent results every time. Thank you !


Wednesday 25th of May 2022

Hi Paula I'm delighted to hear that. Thanks so much for stopping by with your great review. We appreciate the feedback.Happy Baking!

Kristi G

Thursday 31st of March 2022

I just finished baking the first batch. They are not completely cool. I had to stop and write this. I made your recipe as written with 1 exception. We are a Skippy super chunk crown here. So I didnt use creamy. I can see chopping extra nuts. So wonderful, so, so wonderful! I might decrease the sugar to 1 and 1/4 and then try 1 cup. They are sweet, but no complaints. Heck, they about didnt make it out of the bowl. The cookie dough was just as yummy. Thank you!


Thursday 31st of March 2022

Hi Kristy, Thanks for the feedback. I'm delighted you made it your own and your family enjoys these. Happy Baking!

Jamie B

Monday 26th of July 2021

This recipe is awesome! I put cookies in the oven, realized they were missing flour, baking powder, and baking soda. I pulled them out and mixed those ingredients in and they still turned out delicious!! #mombrain proof!!


Monday 26th of July 2021

Lol, Glad the recipe worked so well for you. Thanks for your great story! :)

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