Easy Keto Peanut Butter Cookies – Just 3 Ingredients!

If you’re craving something sweet but want to keep it keto, these keto peanut butter cookies are the answer. They’re rich, chewy, and packed with peanut butter flavor, everything you’d want in a cookie, minus the carbs. This recipe has become my go-to for quick treats that feel indulgent without wrecking my macros.

What I love most about these cookies is how ridiculously easy they are. No fancy flours, no mixers, no chill time. Just stir, scoop, and bake. Whether you’re baking for yourself, your kids, or a low-carb get-together, these cookies are a total crowd-pleaser.

Quick Highlights

• Just 3 basic ingredients
• 3g net carbs per cookie
• Ready in under 15 minutes
• No mixer or chilling needed
• Gluten-free & low-carb

Recipe Card

Keto Peanut Butter Cookies

Recipe by Souhail

Cuisine: AmericanDifficulty: Very easy

Servings

12

servings

Prep time

5

minutes

Cooking time

10

minutes

Calories

120

kcal

Soft, chewy, and ultra-easy keto peanut butter cookies made with just 3 ingredients. Perfect for a quick low-carb treat!

Ingredients

• 1 cup natural peanut butter

• 1/2 cup powdered erythritol

• 1 egg

• Optional: 1/2 tsp vanilla, pinch of salt

Directions

• Preheat the oven to 350°F (175°C) and line a baking sheet with parchment paper.
• Mix the peanut butter, sweetener, and egg in a medium bowl until smooth. Stir in vanilla and salt if using.
• Scoop the dough into 1-tablespoon-sized balls and place them on the baking sheet.
• Flatten each ball gently with a fork, creating a crisscross pattern.
• Bake for 10–12 minutes or until the edges are lightly golden.
• Cool completely on the pan (they firm up as they cool!).

Notes

• Make sure peanut butter is just peanuts and salt (no sugar).
• Cookies will firm up as they cool.
• For extra flavor, try adding vanilla extract and a pinch of salt.

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Friendly Tips for Cookie Success

Even though these 3 ingredient keto peanut butter cookies are nearly foolproof, a few little tricks can take them from good to absolutely amazing. Think of these like those little nuggets of wisdom you’d get from a friend who’s baked them a dozen times (because I have!).

• Use natural peanut butter: Look for jars with just peanuts and salt, no added sugars or oils. It makes a big difference in both texture and carb count.
• Don’t overbake: They’ll look a little soft when you pull them from the oven, and that’s totally fine. They firm up as they cool.
• Cool on the tray: Let them hang out for at least 10 minutes before moving. They’re delicate when hot!
• Sift your sweetener: If your powdered sweetener is a bit clumpy, give it a quick sift for smoother mixing.
• Fork pattern helps: The classic crisscross with a fork isn’t just for looks, it helps them bake evenly.

Fun Variations to Try

Once you’ve made the classic version (and trust me, you will more than once!), try mixing things up with some fun twists. These ideas keep the recipe low-carb but give your keto peanut butter cookies a whole new vibe. It’s like giving your favorite jeans a new look with accessories!

• Chocolate Chip Keto Peanut Butter Cookies: Stir in a few sugar-free chocolate chips before baking for that classic PB + chocolate combo.
• Crunchy Style: Swap in crunchy peanut butter for texture lovers, it gives a little crunch in every bite.
• Nut-Free Version: Allergic to peanuts? Sunflower seed butter works beautifully and still keeps it low carb.
• Coconut Flour Boost: If your dough feels too oily (some peanut butters vary), mix in 1 tablespoon of coconut flour to help absorb extra moisture.
• Sweet & Salty Finish: Sprinkle a tiny pinch of sea salt on top right before baking to bring out the flavor even more.

Nutrition Facts (Per Cookie – Makes 12)

• Calories: 120 kcal
• Fat: 10g
• Protein: 5g
• Net Carbs: 3g

FAQs About Keto Peanut Butter Cookies

Don’t Be Surprised If You Make These Every Week

Once you try these 3 ingredient keto peanut butter cookies, don’t be shocked if they become a regular in your dessert rotation. They’re just that good, quick to make, endlessly customizable, and perfect for keeping those sweet cravings in check without going off track.

If you loved this easy keto treat, you’ll probably enjoy a few of my other go-to recipes too. When I’m in the mood for something creamy, this keto cookie dough is always a hit (and totally safe to eat raw!). Or if you’re more of a chocolate lover, don’t miss my ultra-fudgy keto cheesecake brownies. For those chill nights when you want a frozen treat, I can’t recommend this keto butter pecan ice cream enough.

No matter where you are in your keto journey, just know that delicious, satisfying desserts are 100% possible, and I’m here to share every one of my favorites with you.