The Easiest Keto Peanut Butter Cookies Ever (Only 3 Ingredients!)

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Ok, these keto peanut butter cookies are so incredibly easy I feel almost guilty making a blog post explaining how to make them.

You literally need only 3 ingredients and they’re done within 20 minutes.
Say what?

I know, it’s crazy.
I looove easy recipes and I always try to make sure that my recipes are easy as well.

Sometimes I also like to go for a bit more complicated stuff but that’s definitely the exception.
These little guys might take the throne of easy keto treats.

The Easiest Keto Peanut Butter Cookies Ever (Only 3 Ingredients!)


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  • The Easiest Keto Peanut Butter Cookies Ever (Only 3 Ingredients!)


    I absolutely love how easy this recipe is. You literally only need 3 ingredients, + one optional one!

    (You can find the exact amounts needed on the recipe card at the end of this post!)

  • smooth sugar-free peanut butter:

    the only ingredients added should be peanuts, water and/ or salt.
    If there’s anything else, it could be sugar and we don’t want that!

    You will find a bit of sugar on the nutrition label even on peanut butter with no sugar added – but that’s the natural sugar from the peanuts.
    No way around that.
    But as soon as something else pops up, especially something you can’t pronounce, skip it.

    (Fun fact: Did you know sugar has over 50 names?
    A neat trick manufracturers like to use is to replace the name “sugar” with one or more of the 50 other synonyms to mislead customers.

  • eggs: one whole egg
  • powdered erythritol:
    my absolute favorite keto-friendly sweetener!
    – it doesn’t spkie your blood sugar,
    – it’s completely safe and
    – has a very natural sweet taste that I personally really like.

    Because of its natural origin and natural production process (fermentation with a certain kind of yeast) I do consider erythritol to be paleo-friendly.

    Of course, you can use other powdered keto-friendly sweeteners as well!
    Keep in mind though, that you may have to adjust the amount of the sweetener added.

    Erythtirol is about 70% as sweet as sugar whereas other keto-friendly sweeteners such as monk fruit or stevia are much sweeter than sugar.

  • sugar-free vanilla extract:

    the vanilla extract is totally optional and not neccessary for the recipe – I just live for vanilla extract and add it to almost everything I make.

    Do I may have an addiction? Maybe. Just maybe.

    The Easiest Keto Peanut Butter Cookies Ever (Only 3 Ingredients!)


    1. Mix the ingredients:
    Preheat your oven to 350°F/180°C.
    Mix all of the ingredients in a large bowl until you get a smooth and chunk-free dough.

    2. Make the cookies:
    Form equally sized balls from the dough (I got about 16 from the recipe), place them on a baking tray lined with parchment paper and press them down with the palm of your hands.

    Take a fork and gently press on the cookies to make a criss-cross pattern.

    ☝︎ Make sure to leave a little bit of space in between the cookies because they will spread out a bit.
    Not too much, but I’d leave about an inch in between the cookies to avoid that they combine and become one huge cookie.

    3. Bake in the oven:
    Bake in preheated oven for approx. 8-12 minutes.

    ☝︎ Don’t worry if the cookies appear “mushy” when they are freshly out of the oven, that’s totally normal and they’ll harden once they cool down.

    4. Serve:
    Let cool down completely before enjoying with a hot cup of tea or coffee!
    (My guilty pleasure is dipping the cookies into my coffee before enjoying them.)



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    Nutrition Info:

    One keto peanut butter cookie (approx. 0.6oz/20g) has 2.4g net carbs (2.4g total carbs and 0g dietary fiber), 8.2g fat, 4.3g protein and 102 calories.

    How do you include Erythritol in your calculations?

    The short answer is: I don’t, and I can tell you why.

Erythritol is a sugar alcohol which your body can’t digest.

    If you ingest it, it won’t spike your blood sugar & it won’t release insulin (which is a good thing if you want to stay in ketosis).

    It passes through our system basically “untouched”.
    Because of this, you can subtract the carbs from erythritol completely, which is what I always do. 

    (I try to be as accurate as possible with this information, but values may vary because of natural occurring fluctuations and different products used.)



    Eager for more delicious keto treats? I’ve got you covered! Check out these posts too:

  • Velvety No Bake Keto Brownie Bites
  • Healthy No Bake Ferrero Rocher Keto Fat Bombs
  • Keto Coconut Almond Fat Bombs (Homemade Raffaello Coconut Balls)
  • Healthy No Bake Keto Snickers Bars
  • The Easiest Keto Peanut Butter Cookies Ever
  • Healthy No Bake Keto Coconut Bars (Homemade Mounds Bars/ Bounty Bars)
  • Chocolate Keto Mug Cake With Peanut Butter Core
    The Easiest Keto Peanut Butter Cookies Ever (Only 3 Ingredients!) 

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    The Easiest Keto Peanut Butter Cookies Ever (Only 3 Ingredients!)

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    I’m Uliana, the creator of
    The Low Carb/ Keto Lifestyle is my passion and I’m so happy that I can share my journey with you!
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