If you’re anything like me, the moment you hear the words “peanut butter cookies,” nostalgia hits hard. The divine, warm aroma wafting through the kitchen, a perfect pairing with a glass of milk; it’s comfort food at its finest. But what if I told you that you can indulge in this classic delight without straying from your keto lifestyle? Enter my 3-Ingredient Easy Keto Peanut Butter Cookies! These gems are a game-changer, offering a quick and fuss-free recipe that satisfies sweet cravings with just three simple ingredients. Not only are they low-carb and flourless, but they also come together in minutes, making them ideal for a last-minute snack or dessert. Whether you’re following a keto diet or simply looking for a healthier sweet, these cookies promise a delightful treat that delivers flavor without guilt. Curious how to whip up this delightful recipe? Let’s dive in!

Why choose 3-Ingredient Peanut Butter Cookies?
Simplicity: With only three ingredients, these cookies are incredibly easy to make, so anyone can whip them up in no time.
Flavorful Indulgence: The rich peanut butter flavor creates a satisfying sweetness that rivals traditional cookies without the added carbs!
Quick and Easy: Perfect for those last-minute dessert cravings, you’ll have these cookies baked and ready in under 20 minutes.
Crowd-Pleasing: Your friends and family will love these cookies, keto dieters or not! They’re a hit at any gathering.
Versatile Options: Feeling adventurous? Swap peanut butter for almond butter or add sugar-free chocolate chips for a delicious twist. Try pairing them with a hot beverage or enjoy as a quick snack any time.
These Easy Keto Peanut Butter Cookies are a fantastic addition to your sweet treat repertoire!
Easy Keto Peanut Butter Cookies Ingredients
• Here’s everything you need to create these delectable treats!
For the Cookie Dough
- Peanut Butter – Choose a sugar-free variety with only peanuts and salt for the best flavor.
- Egg – This acts as a binding agent, ensuring your cookies hold together beautifully.
- Erythritol (or Keto-friendly Sweetener) – Adds just the right amount of sweetness without the carbs; adjust based on the sweetness level you prefer.
These ingredients come together to create delightful Easy Keto Peanut Butter Cookies that satisfy your sweet tooth without compromising your diet!
Step‑by‑Step Instructions for Easy Keto Peanut Butter Cookies
Step 1: Preheat the Oven
Begin by preheating your oven to 350°F (175°C). As it heats, line a baking sheet with parchment paper to ensure your Easy Keto Peanut Butter Cookies won’t stick. This will provide a non-stick surface and make cleanup a breeze!
Step 2: Mix the Ingredients
In a medium mixing bowl, combine your chosen sugar-free peanut butter, egg, and erythritol. Use a fork or whisk to mix the ingredients until you achieve a smooth and well-combined dough. This should take about 1-2 minutes—look for a glossy texture that holds together well.
Step 3: Shape the Cookies
Lightly wet your hands to prevent sticking and scoop out about one tablespoon of the dough at a time. Roll the mixture into approximately 15 one-inch balls. Place them evenly spaced on the prepared baking sheet, as they will spread slightly while baking.
Step 4: Flatten the Dough Balls
Using a fork, gently press down on each dough ball to flatten them into cookie shapes. This creates a lovely design and helps them bake evenly. Aim for about half an inch in thickness for perfect chewy Easy Keto Peanut Butter Cookies.
Step 5: Bake the Cookies
Slide the baking sheet into the preheated oven and bake your cookies for 10-15 minutes. Keep an eye on them as they should turn golden brown around the edges while remaining soft in the center. Don’t worry—these cookies will firm up as they cool!
Step 6: Cool and Serve
Once baked, remove the cookies from the oven and let them cool on the baking sheet for at least 5 minutes. This resting time is crucial, as it helps them set up for easy transferring. After cooling, enjoy straight away or move them to a wire rack to cool completely.

How to Store and Freeze Easy Keto Peanut Butter Cookies
Room Temperature: Store your cookies in an airtight container at room temperature for up to one week to maintain their chewy texture and delicious flavor.
Fridge: For extended freshness, keep the cookies in the fridge for up to two weeks, ensuring they’re sealed properly to prevent drying out.
Freezer: Freeze your Easy Keto Peanut Butter Cookies in a single layer on a baking sheet for about an hour, then transfer to a freezer-safe bag or container, where they can last up to three months.
Reheating: To enjoy warm cookies, simply pop the frozen cookies in a microwave for about 10-15 seconds or let them thaw at room temperature for a delightful snack.
Easy Keto Peanut Butter Cookie Variations
Feel free to personalize your cookies with these exciting twists that will tempt your taste buds!
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Nutty Swap: Replace peanut butter with almond butter or sunflower seed butter for a distinct flavor profile. Each nut brings its unique richness, creating delicious variations that elevate your cookie game.
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Chocolate Delight: Stir in sugar-free chocolate chips or chunks to the dough for an extra layer of indulgence. The melty chocolate adds a delightful contrast to the nutty flavors, making sweets lovers rejoice!
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Coconut Twist: Incorporate unsweetened shredded coconut into your batter for a hint of tropical flair. The chewy texture of coconut complements the creaminess of peanut butter beautifully.
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Spice It Up: Add a teaspoon of cinnamon or vanilla extract for a warm aromatic touch. These spices enhance the overall flavor while giving your cookies a comforting aroma, perfect for cozy evenings.
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Protein Boost: Mix in a scoop of your favorite protein powder to amp up the nutritional value. It keeps you fuller for longer, making these cookies not just tasty but also a satisfying snack option.
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Oat-Free Crunch: Introduce chopped walnuts or pecans for added texture and crunch. The nutty bits create a delightful contrast, making each bite a hearty experience without compromising your keto goals.
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Heat It Up: Sprinkle in a pinch of cayenne pepper or chili powder for a surprising kick. This unexpected flavor twist will awaken your taste buds and leave you wanting more, a perfect treat for adventurous eaters.
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Creamy Center: Create a sandwich cookie by adding a layer of sugar-free cream cheese frosting between two cookies. This creamy addition takes your cookies to a whole new level—every bite is a luscious experience!
With these ideas, your Easy Keto Peanut Butter Cookies can transform into delightful creations that suit any craving. For additional inspiration, why not try these Cranberry Cookies Chewy or perhaps indulge in Chocolate Thumbprint Cookies? Happy baking!
Expert Tips for Easy Keto Peanut Butter Cookies
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Choose Quality Peanut Butter: Use sugar-free peanut butter with no added ingredients for the best flavor and texture in your Easy Keto Peanut Butter Cookies.
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Perfect Dough Consistency: Aim for a smooth, glossy dough. If it’s too crumbly, a dash more peanut butter or egg can help bind it together.
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Keep an Eye on Baking: Check your cookies closely while baking; overbaking will yield hard cookies instead of the soft, chewy texture you desire.
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Cookie Thickness Matters: Flatten the dough balls to about half an inch thick for even cooking. Thicker cookies may need more time and won’t have that chewy consistency.
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Adjust Sweetener to Taste: Every erythritol brand varies in sweetness; start with a moderate amount and adjust to your preference for the perfect guilt-free cookie experience.
Make Ahead Options
These Easy Keto Peanut Butter Cookies are perfect for busy weeknights and meal planning! You can prepare the cookie dough up to 24 hours in advance by mixing together the peanut butter, egg, and erythritol, then covering it tightly and refrigerating. This keeps the dough fresh and ready to bake whenever a sweet craving strikes. You can also shape the cookie balls and refrigerate them for up to 3 days. When you’re ready to enjoy them, just preheat your oven and bake as directed, knowing they’ll bake up just as delicious and chewy as if made fresh. This way, you can have a delightful keto-friendly treat with minimal effort anytime!
What to Serve with 3-Ingredient Easy Keto Peanut Butter Cookies
Elevate your cookie experience by pairing these melt-in-your-mouth delights with complimentary dishes that balance flavors and textures.
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Creamy Coffee: The rich, nutty cookies harmonize perfectly with a smooth cup of coffee, enhancing the peanut butter goodness.
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Fresh Fruit: Slices of crisp apple or a handful of berries add a refreshing contrast, providing a burst of juiciness with each bite.
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Sugar-Free Whipped Cream: A dollop of this fluffy goodness can turn your cookie into a decadent dessert experience without the carbs.
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Nutty Ice Cream: A scoop of sugar-free vanilla or chocolate ice cream brings cold creaminess to your warm cookies, making every bite an indulgent treat.
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Herbal Tea: Pair your cookies with a soothing cup of herbal tea for a calming snack time, allowing the subtle flavors of both to shine through.
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Dark Chocolate Drizzle: A light drizzle of melted sugar-free dark chocolate can elevate these cookies to gourmet status, adding a luxurious touch to each bite.
These delightful pairings will enhance your snacking experience and make your 3-Ingredient Easy Keto Peanut Butter Cookies even more enjoyable!

Easy Keto Peanut Butter Cookies Recipe FAQs
What kind of peanut butter should I use?
Absolutely! For the best results, opt for natural, sugar-free peanut butter that contains only peanuts and salt. Avoid brands with added sugars or unhealthy oils, as these can affect the cookies’ texture and flavor.
How can I store my Easy Keto Peanut Butter Cookies?
Store your cookies in an airtight container at room temperature for up to one week. If you’d like them to stay fresher longer, you can refrigerate them for up to two weeks. Just remember to seal them properly to avoid drying out!
Can I freeze these cookies?
Yes! To freeze your Easy Keto Peanut Butter Cookies, place them in a single layer on a baking sheet and freeze for about an hour. Once frozen, transfer them to a freezer-safe bag or container, where they’ll last for up to three months. When you’re ready to enjoy one, simply microwave it for 10-15 seconds or let it thaw at room temperature!
What should I do if my dough is too crumbly?
If you find your dough isn’t holding together well, don’t worry! Just add a tiny bit more peanut butter or an additional egg to help bind it. You’ll want the mixture to be smooth and glossy—this consistency will yield the best cookies.
Are these cookies safe for people with nut allergies?
Unfortunately, these Easy Keto Peanut Butter Cookies contain peanut butter, which makes them unsuitable for anyone with nut allergies. However, you can substitute peanut butter with sunflower seed butter for a nut-free version, just ensure it’s also sugar-free!
How do I know when my cookies are done baking?
Great question! Bake your cookies for about 10-15 minutes until the edges turn golden brown while the centers likely remain soft. Don’t worry—the cookies will firm up as they cool, so a little extra softness is perfectly fine!

Deliciously Easy Keto Peanut Butter Cookies in Just Minutes
Ingredients
Equipment
Method
- Preheat your oven to 350°F (175°C) and line a baking sheet with parchment paper.
- In a mixing bowl, combine sugar-free peanut butter, egg, and erythritol until smooth.
- Scoop out about one tablespoon of dough, roll into balls and place on the baking sheet.
- Flatten each dough ball with a fork to about half an inch thick.
- Bake for 10-15 minutes until golden brown around the edges.
- Cool on the baking sheet for at least 5 minutes before transferring.

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