Keto Peanut Butter Cookie Recipe

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Everyone loves a good cookie, and my Coconut Flour Peanut Butter Cookies are made with love. Created out of memories of my own mom’s cookie recipe, these low-carb peanut butter cookies are the perfect option to share with your friends and family. The salty flavor of peanut butter is the perfect compliment to a sweet treat.

stack of low carb peanut butter cookies


I love my momma’s homemade peanut butter cookies. She always made them for our family when I was young, and I have fond memories of the smell of fresh peanut butter cookies baking. When I got married, she passed down the recipe to me. I’d have to say that they are probably one of my and my hubby’s favorite cookies next to the chocolate chip cookie. They always hit the spot and are so easy to whip up.

However, I don’t make them often because my oldest daughter is allergic to peanuts. When I do, I spend so much time cleaning and bleaching the kitchen that it doesn’t usually seem worth it. Thankfully, she is only allergic if she ingests peanut butter, but I am just extra cautious. Anyway, today is a lazy Saturday afternoon with football on the tv and everyone lounging around in our “quitters” (comfy clothes), so I thought I’d see if I could transform my mom’s recipe for peanut butter cookies and make a Keto Peanut Butter Cookie Recipe.


To adapt this recipe to the keto diet, I swapped out regular flour for coconut flour and reduced the amount since it’s not a 1:1 substitution with all-purpose flour. I did the same for regular sugar and Swerve since Swerve is a tad bit sweeter than the normal stuff. Although these low-carb peanut butter cookies will never be as good as my momma’s, they are a fabulous alternative and aren’t full of carbs and sugar. These are a great way to indulge in some dessert without falling out of ketosis. Having keto/low-carb desserts on hand now and then sure makes following a keto lifestyle easy. Yes, we can indulge in sweets too!

Ingredients you’ll need:

  • Natural peanut butter – I used Smucker’s Natural Peanut Butter in this recipe, but you can use any kind you like. 
  • Granulated Swerve – In place of regular sugar, I used Swerve to keep this recipe keto friendly. 
  • Coconut flour – This is your keto flour substitute for these keto peanut butter cookies. Feel free to use almond flour instead, but keep in mind that there is a 1:4 ratio (¼ cup coconut flour = 1 cup almond flour)
  • Coconut oil – Coconut oil is one of my go-to fats for baking. I feel better knowing that it’s a healthier swap, and you can’t even taste the coconut in the final product. Be sure to use refined coconut oil if you prefer not to taste the coconut!
  • Xanthan gum – This is a binding agent that’s both gluten-free and keto friendly. You can buy Xanthan gum on Amazon or find it at several chain grocery stores. 
  • Vanilla – Vanilla extract goes into most of my baking recipes. It’s a subtle flavor, but something always feels like it’s missing when it’s left out.

Steps for making peanut butter keto cookies:

plate with keto peanut butter cookies piled on top

Step 1: Preheat the oven to 375 degrees. Line a cookie sheet with parchment paper. You can grease your cookie sheet if you don’t have parchment paper.

Step 2: In a bowl, combine all of your keto peanut butter cookie ingredients, reserving one teaspoon of Swerve. Mix well with a mixer. You could use a stand, handheld, or do the work by hand.

Step 3: With a cookie scoop, drop in balls on parchment paper on a cookie sheet (or a greased cookie pan). 

Step 4: Make a criss-cross on top of each cookie using a fork. Sprinkle 1 tsp granulated Swerve on the tops of the cookies.

Step 5: Next, bake the cookies for 7-9 minutes or until just turning brown. Let them cool on the cookie sheet before transferring them to a wire rack to cool completely. Finally, you’re ready to enjoy your low-carb peanut butter cookies!


Peanut butter is indeed low carb and a great source of protein and healthy fats. One serving of peanut butter only contains 3.5 net carbs, making it a perfect source of energy on a keto diet. We’d always keep it in the pantry if my daughter wasn’t allergic. It’s a great way to add a healthy bonus to snacks, desserts, and more.


I haven’t personally tried crunchy peanut butter in this recipe, but I’m sure it would add a satisfying texture to your final product. Feel free to use whatever kind of peanut butter on hand. The great thing about these low-carb peanut butter cookies is that they only require a handful of ingredients, many of which you’d already have if you’re accustomed to baking on keto.


If you don’t already have some at home, I’d highly recommend stocking up on this stuff. Xanthan gum replaces thickening and binding agents like cornstarch and comes in handy for a lot of keto and gluten-free recipes. You can buy xanthan gum on Amazon here or at stores like Target, Kroger, and Walmart.

More Peanut Butter Keto Dessert Recipes:

Keto Peanut Butter Cookie Recipe:

keto peanut butter cookies stacked
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4.65 from 31 votes

Momma's Keto Peanut Butter Cookies {keto / low carb}

Course: Dessert
Cuisine: American
Servings: 16
Calories: 109kcal
Author: Kasey Trenum



  • Preheat oven to 375 degrees.
  • In a bowl, combine all ingredients reserving one teaspoon of Swerve and mix well with a mixer.
  • With a cookie scoop drop in balls on parchment paper on a cookie sheet (or a greased cookie pan).
  • Using a fork, make a criss-cross on top of each cookie.
  • Sprinkle 1 tsp granulated Swerve on the tops of the cookies.
  • Bake for 7-9 minutes or until just turning brown.



The sugar alcohols in Swerve are not calculated in nutritional information since most subtract to get net carbs. 


Calories: 109kcal | Carbohydrates: 3g | Protein: 4g | Fat: 9g | Saturated Fat: 2g | Cholesterol: 10mg | Sodium: 80mg | Potassium: 108mg | Fiber: 1g | Sugar: 1g | Vitamin A: 15IU | Calcium: 8mg | Iron: 0.4mg
Tried this recipe?Mention @kaseytrenumblogger or tag #kaseytrenumblogger!

Other Keto Dessert Recipes:

You can access all of my Keto/Low Carb Recipes in my Keto/Low Carb Recipe Index or follow me on Pinterest for fabulous Keto/Low Carb Recipe Ideas. If you are just getting started following a keto diet and would like more information, check out our keto resources for beginners. Amazon has several great books you may want to check out here.

Keto Peanut Butter Cookies

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  1. Love love love this recipe! Have made many batches and eaten way too many of them in one sitting.

    You never let me down, Kasey! Thank you!

    For others making these: I pull them out JUST before they start really changing color. Probably a minute before Kasey would take them out. They’re not as dry and crumbly that way but still set up when cooled.

  2. 4 stars
    These cookies are so easy to make! They are a little dry but overall, I really enjoy the taste! Thank you so much for sharing this easy cookie recipe! It definitely helps when I have a sweet tooth!

  3. 5 stars
    Taste good but had to freeze as they crumbled alot. I used peanut butter with nuts as I did not have creamy peanut butter. Could that be why they fall apart/

    1. I swap regular serve and brown sugar swerve all the time with little to no issue. Definitely done it with these cookies and they’re still mighty tasty! 🙂

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