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Home » Recipes » Sourdough Recipes » Chewy Sourdough Peanut Butter Cookies

Chewy Sourdough Peanut Butter Cookies

Published: May 20, 2022 · Modified: Mar 28, 2023 by Lynn Polito · This post may contain affiliate links. As an Amazon Associate, I earn a small commission from qualifying purchases.

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Chewy and full of peanut butter flavor, these Sourdough Peanut Butter Cookies are the perfect use for leftover sourdough discard!

Sourdough Peanut Butter cookies are on a wire rack.

Disclosure: This post may contain affiliate links. As an Amazon Associate, I earn a small commission from qualifying purchases. However this is at no cost to you. Read my affiliate links full disclosure policy here.

I love making sourdough bread, but I have always hated getting rid of the extra sourdough starter when you feed your starter. I received my starter a few years ago from a family friend, but you can easily make your own and get started making bread in no time!

Baking with sourdough discard is one of my favorite things to do! You can make baked sourdough donuts, sourdough scones, sourdough discard banana bread, sourdough discard pancakes, sourdough discard waffles, sourdough chocolate chip muffins, and even sourdough crackers with herbs and olive oil crackers!

Jump to:
  • Why These Cookies Are Amazing!
  • Ingredients For Sourdough Peanut Butter Cookies
  • What is Sourdough Discard?
  • Equipment You'll Need
  • How To Make Sourdough Peanut Butter Cookies
  • Variations of These Cookies
  • Frequently Asked Questions About Sourdough Peanut Butter Cookies
  • Other Recipes To Try!
  • 📖 Recipe

Why These Cookies Are Amazing!

  • They are easy to make! Mix up the dough, let it chill, and bake!
  • They are full of peanut butter flavor! If you need a change from a chocolate filled recipe, these cookies are the perfect recipe!
  • It's a great use of your leftover sourdough discard! Don't throw out your extra sourdough discard. Bake with it! It adds a slight tang to the cookies that can't be beat!

Ingredients For Sourdough Peanut Butter Cookies

Ingredients for the sourdough peanut butter cookies.
  • Sourdough Starter. Inactive, or unfed.
  • Peanut Butter. Your favorite brand of creamy peanut butter.
  • Melted Butter. Unsalted or salted.
  • Vanilla Extract.
  • Brown Sugar
  • White Sugar
  • Eggs. Two large eggs.
  • All Purpose Flour.
  • Baking Soda and Baking Powder. Even though there is sourdough starter in the cookies, the baking soda and baking powder give the cookies a bit of a rise.
One sourdough peanut butter cookie is leaned up against the stack of cookies.

What is Sourdough Discard?

Sourdough discard is the portion of your sourdough starter that you are not feeding. When you are "feeding" your starter to make bread with, you add equal parts flour, water, and starter to a mason jar and let it rise.

You can't feed your entire starter, as it doubles and sometimes triples in size, and that's a lot of starter to have on hand! If you are new to sourdough, be sure to check out how to keep a sourdough starter post all about how to keep your sourdough starter happy.

Equipment You'll Need

  • Stand Mixer
  • Measuring Cups
  • Measuring Spoons
  • Ice Cream Scoop
  • Silicone Mat or Parchment Paper
  • Baking Sheet
  • Wire Cooling Rack
A hand is picking up the sourdough peanut butter cookie.

How To Make Sourdough Peanut Butter Cookies

Preheat the oven to 375 degrees. In a small bowl, mix together the flour, baking soda, and baking powder. Set that aside.

In the bowl of a stand mixer, add the melted butter, brown sugar, and white sugar. With the stand mixer fitted with the paddle attachment, cream the butter and sugar until well mixed and light in color.

Add the eggs and vanilla extract to the bowl. Mix again.

Add the sourdough discard and peanut butter to the bowl. Mix again.

The sugar and butter is added to the stand mixer.
Add the sugar and butter to the bowl.
The eggs are added to the mixing bowl.
Mix in the eggs.
The peanut butter and sourdough discard are added to the stand mixer.
Add the peanut butter and sourdough discard.

Carefully add the flour mixture to the stand mixer and mix until combined.

Flour is added to a bowl with the leavening agents.
Mix the flour and leavening agent.
The flour is added to the stand mixer.
Add the flour to the mixing bowl.

Add 1 cup of sugar to a bowl. With an ice cream scoop, scoop out the dough into the bowl of sugar. Roll the dough in the sugar and place the dough on a parchment lined baking sheet.

Press a fork into the cookie dough to flatten the dough. Cross hatch the dough with another fork imprint.

Bake the cookies for 12 minutes and then take them off the baking sheet and cool on a wire rack.

The ball of sourdough peanut butter is rolled in sugar.
Roll the dough in sugar.
The fork prongs are making an indentation in the cookie dough ball.
Make an imprint with a fork.

Variations of These Cookies

  • Add chocolate chips! Chocolate makes everything better! Add 1 ½ cups of semi-sweet chocolate chips to the batter.
  • Use crunchy peanut butter! To add some more texture to the cookies, use crunchy peanut butter.
  • Chop up peanuts! Just like crunchy peanut butter, salted peanuts will add a bit of salt and some crunch to the cookies.
  • Add peanut butter chips! To increase the peanut butter flavor, use your favorite variety of peanut butter chips.
  • Make them in the air fryer! Check out my friend Wendy's post about air fryer peanut butter cookies!
A stack of sourdough peanut butter cookies with one of the cookies having a bite in it.

Frequently Asked Questions About Sourdough Peanut Butter Cookies

Do sourdough peanut butter cookies taste sour?

No! The sourdough discard adds a bit of a tang to the cookies, but they do not taste sour. If you want to up the sour flavor, chill the cookie dough in the refrigerator for a few hours, or overnight. That will enhance the sour flavor of these cookies.

Can you make these cookies ahead of time?

Yes! You can make these cookies up to 3 days before. Place them in an airtight container to keep them fresh.

Do sourdough peanut butter cookies freeze well?

Yes! You can freeze the dough or the cookies. To freeze the dough, make the dough completely and then shape them into a log. Wrap the log in plastic wrap and freeze for up to 3 months. To freeze the baked cookies, place the cooled cookies in a Ziploc bag and freeze for up to 3 months.

Can I use active starter instead of inactive starter?

Yes! You will get a little bit more of a rise with active starter than you will with inactive starter.

The sourdough peanut butter cookies are stacked next to each other.

Other Recipes To Try!

Did you love this Sourdough Peanut Butter Cookies Recipe? If you did, don't forget to tag me on social media on Instagram or Facebook and share this recipe on Pinterest! Thanks for sharing this journey with me and enjoy these delicious recipes!

More Sourdough Recipes

  • The sourdough discard bread is in a Dutch oven on a cutting board.
    Easy Sourdough Discard Bread (No-Knead!)
  • A sourdough lemon poppy seed muffin is on a cutting board, unwrapped.
    Tangy Sourdough Lemon Poppy Seed Muffins
  • A piece of sourdough irish soda bread is on a plate next to the cast iron skillet.
    One Bowl Sourdough Discard Irish Soda Bread
  • A hand is grabbing a sourdough breadstick.
    Simple Sourdough Breadsticks (No Yeast!)

📖 Recipe

Chewy Sourdough Peanut Butter Cookies

Chewy and full of peanut butter flavor, these Sourdough Peanut Butter Cookies are the perfect use for leftover sourdough discard!
5 from 7 votes
Print Pin Rate
Course: Dessert
Cuisine: American
Prep Time: 5 minutes minutes
Cook Time: 12 minutes minutes
Total Time: 17 minutes minutes
Servings: 36 cookies
Calories: 123kcal
Author: Lynn Polito

Equipment

  • Stand Mixer
  • Measuring Spoons
  • Measuring Cups
  • Ice Cream Scoop
  • Silicone Mat
  • Baking Sheet
  • Wire Cooling Rack

Ingredients

  • 2 cups All purpose flour
  • 1 teaspoon Baking Powder
  • 1 teaspoon Baking Soda
  • ½ teaspoon Salt
  • ½ cup Butter Melted
  • ½ cup Brown Sugar
  • ½ cup Granulated Sugar Plus for more rolling the cookie dough in
  • 1 teaspoon Vanilla Extract
  • 2 Eggs
  • 1 cup Peanut Butter
  • 1 cup Sourdough Starter Inactive not recently fed

Instructions

  • Preheat the oven to 375 degrees. In a small bowl, mix together the flour, baking soda, salt, and baking powder. Set that aside.
  • In the bowl of a stand mixer, add the melted butter, brown sugar, and white sugar. With the stand mixer fitted with the paddle attachment, cream the butter and sugar until well mixed and light in color.
  • Add the eggs and vanilla extract to the bowl. Mix again.
  • Add the sourdough discard and peanut butter to the bowl. Mix again.
  • Carefully add the flour mixture to the stand mixer and mix until combined. Cover the bowl with plastic wrap.
  • Let the dough rest in the refrigerator for at least one hour.
  • Add 1 cup of sugar to a bowl. With an ice cream scoop, scoop out the dough into the bowl of sugar. Roll the dough in the sugar and place the dough on a parchment lined baking sheet.
  • Press a fork into the cookie dough to flatten the dough. Cross hatch the dough with another fork imprint.
  • Bake the cookies for 12 minutes and then take them off the baking sheet and cool on a wire rack.

Notes

  • Add chocolate chips! Chocolate makes everything better! Add 1 ½ cups of semi-sweet chocolate chips to the batter.
  • Use crunchy peanut butter! To add some more texture to the cookies, use crunchy peanut butter.
  • Chop up peanuts! Just like crunchy peanut butter, salted peanuts will add a bit of salt and some crunch to the cookies.
  • Add peanut butter chips! To increase the peanut butter flavor, use your favorite variety of peanut butter chips.

Nutrition

Calories: 123kcal | Carbohydrates: 14g | Protein: 3g | Fat: 7g | Saturated Fat: 2g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 3g | Trans Fat: 1g | Cholesterol: 16mg | Sodium: 98mg | Potassium: 56mg | Fiber: 1g | Sugar: 7g | Vitamin A: 92IU | Calcium: 16mg | Iron: 1mg
Tried this Recipe? Tag me Today!Mention @LynnsWayofLife or tag #lynnswayoflife!
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Reader Interactions

Comments

  1. Alex Bala

    May 23, 2022 at 1:52 pm

    5 stars
    Tackling food waste. I love this, what a great recipe, my husband loves these cookies. Thanks, Lynn you are so smart!

    Reply
  2. Jennifer

    May 23, 2022 at 10:43 am

    5 stars
    Wow, who knew cookies could be so crazy good! These were amazing, and great use of sourdough starter!

    Reply
  3. Sachi

    May 23, 2022 at 10:41 am

    5 stars
    My family is always begging me to bake cookies, since I don't really eat dessert I needed a good recipe. These cookies were a hit with my hubby and son.

    Reply
  4. Claire

    May 22, 2022 at 10:41 pm

    5 stars
    I always hated throwing away that bit of starter, so I love having a way to use it!
    And these were delicious. Can't wait to make them again!

    Reply
  5. Linda

    May 21, 2022 at 1:18 am

    5 stars
    This is my favorite peanut butter cookies recipe and adding a sourdough starter is a delicious idea!

    Reply
  6. Sherry

    May 20, 2022 at 10:58 pm

    5 stars
    There is nothing better than a peanut butter cookie and your cookie tastes AMAZING!!

    Reply

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Hey there! I'm Lynn and I'm based just outside of Boston. I'm a wife and mom of two with a passion for cooking and creating homemade food for my family.

Whether it's creating new recipes, or exploring tried and true classics, I am constantly trying to show that homemade doesn't have to be hard

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