These 3 ingredient keto peanut butter cookies are about to become your best friend! With a mix of creamy, natural peanut butter, powdered erythritol, and an egg, you can enjoy these quick and simple cookies while keeping up with your low-carb lifestyle. These cookies are perfect for keto eating plans while allowing you to enjoy a timeless treat.
Plus, this low-carb peanut butter cookie recipe comes together in just a few minutes requiring only a few steps. So whether you have planned on making these for days, or are in the mood for something sweet, you can find the time in your day to get them in your oven.
A printable recipe card is at the bottom of the post
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Keto Peanut Butter Cookies
Peanut butter cookies are always a family favorite! There is something about the simplicity of the cookie, or maybe the fork pattern on top, that always makes them a great choice.
But, since my husband started following a keto eating plan (and I want to support him) I’ve been on a quest to transform our families’ favorites into low-carb options that both hit that sweet note we love, while also keep the carbs-counts low. Making 3 ingredient keto peanut butter cookies seemed like the perfect recipe to adapt! We love these keto peanut butter cookies so much, we even served them as my birthday dessert with Halo top keto friendly ice cream on the side.
It’s not always easy, and often takes a few attempts, but I think I hit this one out of the park! We’ve experimented with Swerve powdered sugar, Swerve granulated sugar, and even Swerve golden brown sugar to compre and contrast how the change in sweetener impacts the recipe.
Even without the use of traditional peanut butter cookie ingredients, these keto peanut butter cookies will leave you begging for more – and possibly adjusting tomorrows eating plan to allow room. 😉
Why This Recipe Works
- It’s quick and easy! With just three simple ingredients, common in any keto kitchen, you can enjoy these cookies in just a few minutes.
- With NO FLOUR anywhere, these low-carb peanut butter cookies work for many eating plans that have you reducing carbs and avoiding processed ingredients.
- Creamy peanut butter and a quality sugar substitute combine to give you the taste you know and love, without all the added carbs of traditional cookie recipes.
- Perfect for bake sales, cookie swaps, an office party, or simply because you are in the mood for something sweet.
Ingredients for 3 Ingredient Keto Cookies
One of my favorite things about this recipe (besides being just 3 ingredients) is that it uses items that are always in my house! No need to grab something new or specific for this one. Just grab your favorite mixing bowl, preheat the oven, and get ready to bake.
For these keto peanut butter cookies you will need:
- 1 cup natural peanut butter
- 1/2 cup powdered erythritol
- 1 egg
- 1 tsp vanilla (optional)
Keto Peanut Butter Cookie Recipe
Create your 3 ingredient Keto Peanut Butter cookies in just 3 easy steps!
Preheat your oven to 350. Be sure your rack is in the middle position in your oven.
To start, you simply combine your peanut butter, erythritol, and egg in a medium-sized bowl using your favorite spatula. Add in the optional vanilla here as well (just make sure you are using a quality vanilla rather than the imitation stuff). Mix until just combined.
Next, line a cookie sheet with parchment paper. Scoop your dough and roll into balls, about 1-inch in diameter.
Press lightly with a fork for the classic criss-cross pattern!
Place in your preheated oven for 9-10 minutes. I prefer to cook my cookies on the lower end creating a softer finished product. However, as long as you don’t exceed 10-minutes, they will still be delicious!
Allow your keto peanut butter cookies to cool for a few minutes before placing them on a cooling rack.
Keto Peanut Butter Cookies Recipe Tips
- Adding in 1/2 to 1 teaspoon of vanilla will up the flavor-factor of these cookies, however it is completely optional!
- Be sure to pre-heat the oven before you dig out your ingredients! This recipe whips up in no time flat.
- Using a cookie scoop will ensure your peanut butter cookies are uniform in size and bake evenly.
- Allowing your egg to come up to room temperature will make it easier to combine.
- Top with crushed peanuts before baking to add a little extra crunch to your cookies.
- This is a great recipe if you are looking to introduce your kids to baking! Super simple and easy for little hands.
How to Store the 3 Ingredient Keto Cookies
Store your keto peanut butter cookies in an airtight container or zippered bag to keep them fresh for up to 5 days.
Can I Freeze Peanut Butter Cookies?
Oh yes, you can! After allowing your 3 ingredient keto peanut butter cookies to cool completely, place them in the freezer in a single layer for 20-30 minutes. Then transfer them to a storage container or freezer bag and save them for later.
Meaning… you could always whip up a double batch today and freeze half for later.
Other Keto Desserts You’ll Love
- Keto Blondies
- Keto Raspberry Custard Pie
- Keto Creme Brulee
- Keto Chocolate Mousse
- Keto Whipped Cream
- Keto Pumpkin Pie
And be sure to pin the recipe for later on Pinterest so you can easily get back to it!
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- 1 cup natural peanut butter
- 1/2 cup powdered erythritol
- 1 egg
Preheat the oven to 350F and make sure the oven rack is in the center position.
In a medium sized mixing bowl, add the peanut butter, egg, and powdered erythrtiol. If you have vanilla, adding 1/2-1 tsp is a nice addition but totally optional.
Mix the ingredients together until just blended.
Form the peanut butter cookie dough into small balls and put them on a parchment paper lined baking sheet.
Gently flatten the cookie dough balls with a fork to make criss-cross lines.
Bake for 9-10 minutes until the cookies are baked through.
Let the cookies cool for 5 minutes before removing from the baking sheet.
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