Keto Peanut Butter Cookies

5 from 11 votes
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Cookies that are delicious AND healthy? With only 4 ingredients, these Keto Peanut Butter Cookies will have you forgetting carbs even exist. And what’s better than cookies that stick to your diet plan? Nothing!

Peanut Butter Keto Cookies Close Up

If your home is anything like mine, cookies are always a big hit. I will make them, and as soon and the cookies have cooled off, they are gone. I can’t keep them around!

These Keto Peanut Butter Cookies are healthy and disappear just as quickly as traditional cookies, so I feel good about my family devouring them. Chances are, you probably have all of the ingredients for these cookies on hand already, so why not make them? They are gluten free and vegetarian friendly, too!


Keto cookies are cookies based off of the ketogenic (keto) diet, which is a very low carb and high fat diet. It is similar to the Atkins diet. The keto diet reduces your carbohydrate intake so much, that your body goes into a metabolic state known as ketosis.

I know most diets don’t allow for cookies, but when they are made with the right ingredients, I say, make the cookies! 🍪 

Healthier cookies usually mean no flour and less sugar. When we see that, we obviously start to question what these cookies will taste like. Don’t worry! These cookies definitely aren’t taste-free! Plus, with only four yummy ingredients, it doesn’t get any easier.

To make keto cookies you will need:

  • Smooth peanut butter
  • Egg
  • Sweetener
  • Pure vanilla extract

Keto Peanut Butter Cookie dough


These Keto Peanut Butter Cookies are seriously the most simple cookies anyone could make, I wonder why I didn’t come up with this recipe sooner. Here’s how you can make them:

  1. First, you’ll need to preheat your oven and line a cookie sheet with parchment paper.
  2. Then you’ll want to combine the peanut butter, egg, vanilla and sweetener, until everything is well blended.
  3. Next, you’ll need to spray your hands with cooking spray to prevent the dough from sticking. Then pinch off small sections of the dough and shape them into 12 evenly sized balls.
  4. Move the dough balls to the cookie sheet with the parchment paper and use a fork to flatten each ball to make an even layer. You can even make a cross-hatch pattern in your dough to give the cookies a nice, homemade touch.
  5. Finally, bake those cookies!

Once removed from the oven, let the cookies rest on the cookie sheet for one minute before transferring them to a cooling rack to cool completely.


  • Some ovens bake faster than others. Keep an eye on your cookies towards the end of the baking time, especially the first time you make them. If they are browning quicker than expected, take them out of the oven and test them for doneness.
  • Make a note of how long it took the cookies to bake so that you don’t have to test next time.
  • I know making cookies without flour just doesn’t seem right, but TRUST ME on this one!

Keto Peanut Butter Cookies


  • The best way to store your cooled cookies is in an airtight container and set on your counter, or in your pantry. They can stay there for up to 4 days – if they aren’t already gone by then!


  • Yes! Bake these cookies according to the directions. Once the cookies are cool, place them in an airtight container or zip top bag.
  • They can be left in the freezer for up to two months. The best part – they only take a few hours on the counter at room temperature to thaw.

Keto Peanut Butter Cookies with Chocolate



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5 from 11 votes

Keto Peanut Butter Cookies

Cookies that are delicious AND healthy? In only 4 ingredients, these Keto Peanut Butter Cookies will have you forgetting carbs even exist.
Prep Time: 10 minutes
Cook Time: 12 minutes
Total Time: 30 minutes
Servings: 12


  • 1 cup smooth natural peanut butter
  • 1 large egg, lightly beaten
  • 1/3 cup or to taste sweetener (I use Swerve)
  • 1 teaspoon pure vanilla extract
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  • Preheat oven to 350°F.
  • Line a cookie sheet with parchment paper and set aside.
  • In a large mixing bowl combine peanut butter, egg, sweetener, and vanilla; whisk and stir until everything is completely incorporated.
  • Lightly spray your hands with cooking spray; pinch off cookie dough and shape into 12 balls.
  • Transfer cookie balls to previously prepared cookie sheet.
  • Using a fork, flatten each cookie to about 1/2-inch thickness, making a cross-hatch design on top of each cookie.
  • Bake for 10 to 12 minutes, or until firm.
  • Remove from oven and let stand on cookie sheet for 1 minute.
  • Transfer cookies to a cooling rack; let cool completely.
  • Serve.




Serving: 1cookie | Calories: 120kcal | Carbohydrates: 10g | Protein: 6g | Fat: 8g | Saturated Fat: 1g | Cholesterol: 18mg | Sodium: 123mg | Potassium: 150mg | Fiber: 1g | Sugar: 2g | Vitamin A: 26IU | Calcium: 10mg | Iron: 1mg

Nutritional info is an estimate and provided as courtesy. Values may vary according to the ingredients and tools used. Please use your preferred nutritional calculator for more detailed info.

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Recipe Rating:


  1. rosesarered0549 says:

    These are so easy and tasty. We always crave something a little sweet after dinner. These fit the bill nicely without a big sugar spike. Love love love – thanks!

  2. Suzy says:

    The best cookies! So easy to make and delicious too!

    1. Katerina Petrovska says:

      We love these cookies! Thank YOU, Suzy!

  3. De Reiger says:

    Well,i really excited to try this one,looks delicious.Thank you so much for sharing

    1. Katerina Petrovska says:

      Thank YOU!! I hope you enjoy it! 🙂

  4. Erin | Dinners,Dishes and Dessert says:

    These Keto Peanut Butter Cookies sound delicious! Dangerously good…

    1. Katerina Petrovska says:

      Thank YOU, Erin!! 🙂

  5. Vikki says:

    It’s so amazing to find cookies that taste good and go with your diet!

    1. Katerina Petrovska says:

      Thank YOU, Vikki!

  6. Amanda says:

    Love a great peanut butter cookie… can’t wait to try out this keto version!

    1. Katerina Petrovska says:

      I hope you love them!! Thank YOU! 🙂

  7. Chelsea says:

    These cookies are sooo amazing!! We’re obsessed! Thanks for sharing!

    1. Katerina Petrovska says:

      I am very happy you enjoyed them!! Thank YOU, Chelsea! 🙂

  8. Jacque Hooper says:

    I haven’t made peanut butter cookies in such a long time! Definitely going to bake up a batch this weekend; these look perfect!

    1. Katerina Petrovska says:

      Thank YOU, Jacque!! I hope you enjoy them!

  9. Natalie says:

    Love that these are keto friendly & taste so good! I love peanut butter cookies!

    1. Katerina Petrovska says:

      Thank you so much Natalie! 🙂

  10. Sara Welch says:

    Excited to make these for my daughter’s bake sale this weekend; these will be perfect!

    1. Katerina Petrovska says:

      I hope everyone enjoys them!! Thank YOU! 🙂