Irresistible 3-Ingredient Keto Peanut Butter Cookies
Irresistible 3-Ingredient Keto Peanut Butter Cookies
Ingredients
Method
- Preheat oven to 180 °C (350 °F) and line a baking tray with parchment paper.
- In a bowl, mix peanut butter, keto sweetener, and egg until smooth dough forms.
- Scoop tablespoon-size portions and roll into balls.
- Place on tray and flatten gently with a fork to create crisscross pattern.
- Bake for 8–10 minutes until edges are set and tops lightly golden.
- Cool on tray for 5 minutes, then transfer to rack to cool completely.
Notes
Cookies firm up as they cool, so avoid overbaking.
For extra flavor, add a pinch of sea salt or sugar-free chocolate chips.
Store in airtight container at room temperature up to 4 days or refrigerate for longer freshness. DID YOU MAKE THIS EASY RECIPE?
If you have, then share it with us by sending a photo. We’re excited to see what you’ve made.
Good news: these 3-ingredient keto peanut butter cookies exist, and they’re basically the culinary equivalent of finding money in your old jeans. Minimal effort, maximum snack satisfaction. No flour, no sugar, no drama—just soft, peanut-buttery goodness in under 15 minutes.
Let’s bake something dangerously easy.
Why This Recipe is Awesome
First of all: three ingredients. That’s it. You probably already have them sitting in your kitchen judging you for not baking more often.
Second: these cookies are naturally gluten-free, keto-friendly, and low-carb. So you can enjoy a sweet treat without side-eyeing your carb tracker afterward.
Third: they’re basically fool proof. Like, “I made these half-asleep and they still turned out great” level fool proof. No mixers, no chilling dough, no complicated steps.
Also—real talk—they taste like legit peanut butter cookies. Not “diet cookie that makes you sad.” Just chewy, nutty, lightly sweet cookies that happen to be keto. Big win.
Ingredients You’ll Need
- 1 cup natural peanut butter – The creamy, no-sugar-added kind. The ingredient list should basically just say “peanuts.” Wild, right?
- 1/3 cup keto sweetener – Erythritol or monk fruit works great. Pick your favourite low-carb sweet vibe.
- 1 large egg – The magical binder that keeps everything from becoming peanut butter crumble chaos.
Optional but recommended:
- Pinch of salt (if your peanut butter isn’t salted)
- Splash of vanilla (if you’re feeling fancy)
Step-by-Step Instructions
- Preheat the oven to 350°F (175°C).
Yes, actually preheat it. Don’t just turn it on when you remember halfway through mixing. Ovens deserve respect. - Mix everything in a bowl.
Add peanut butter, sweetener, and egg. Stir until it forms a thick, smooth dough.
Tip: If it looks glossy and cohesive, you’re doing it right. If it looks crumbly, keep mixing. - Roll into balls.
Scoop about 1 tablespoon of dough and roll into balls. Place them on a lined baking sheet about 2 inches apart. They won’t spread much, but let’s not crowd them like a concert pit. - Flatten with a fork.
Press each ball gently with a fork to create that classic crisscross pattern.
Bonus: this also helps them bake evenly. So yes, the lines matter. - Bake for 8–10 minutes.
Edges should look set and slightly golden. Canters stay soft—that’s the chewy magic.
Important: Don’t overbake. Keto cookies go from perfect to sad hockey pucks fast. - Cool before moving.
They’ll be soft straight from the oven. Let them cool on the tray for 5 minutes, then transfer to a rack.
They firm up as they cool. Patience = better texture.
Common Mistakes to Avoid
- Using sugary peanut butter.
If your peanut butter has added sugar, congrats—you just un-ketolide the recipe. Read labels. - Overbaking “just to be safe.”
No. That’s how you get dry cookies. They should look slightly underdone in the centre when you pull them out. - Skipping the fork press.
Thick balls of dough won’t cook evenly. You’ll get burnt bottoms and raw middles. Not cute. - Using cold peanut butter straight from the fridge.
It mixes poorly and fights you the whole time. Room-temp peanut butter = cooperative dough. - Moving cookies too soon.
They’re fragile hot. Give them a few minutes or prepare for cookie casualties.
Alternatives & Substitutions
- Almond butter instead of peanut butter
Works great and gives a slightly milder flavour. IMO, it tastes a bit more “bakery-style.” - Sunflower seed butter
Perfect for nut-free diets. Heads-up: it can turn slightly green when baked (science thing). Still safe, just… surprising. - Different keto sweeteners
Monk fruit blends taste the most sugar-like. Pure erythritol can feel cool on the tongue. Pick your preference. - Add-ins (still keto-friendly)
- Sugar-free chocolate chips
- Chopped pecans
- Cinnamon or cocoa powder
Because honestly, customization is half the fun.
FAQ (Frequently Asked Questions)
Can I make these without egg?
Yes! Use a flax egg (1 tbsp ground flax + 2.5 tbsp water). Texture gets slightly softer but still tasty.
Why are my cookies falling apart?
You probably moved them too early or used oily peanut butter that separated. Stir peanut butter well and let cookies cool fully.
Can I use crunchy peanut butter?
Absolutely. You’ll get extra texture and nutty bits. Basically peanut butter cookies with built-in toppings.
Are these actually keto or just pretending?
They’re legit keto if you use unsweetened peanut butter + keto sweetener. Net carbs stay very low. No fake diet vibes here.
Can I freeze the dough?
Yes. Roll into balls first, freeze, then bake from frozen. Add 1–2 extra minutes baking time. Future-you will be grateful.
How do I store them?
Room temp in an airtight container for 3–4 days. Fridge for up to a week. They also freeze beautifully.
Final Thoughts About Butter Cookies
And there you have it—ridiculously easy 3-ingredient keto peanut butter cookies that deliver real cookie joy without carb guilt. You used three ingredients, one bowl, and basically zero stress. That’s a baking win.
Honestly, this is the kind of recipe you make once… then suddenly you’re the person who “always has homemade keto cookies around.” Not a bad reputation, right?
So go ahead—make a batch, pour some coffee, and enjoy your low-carb cookie moment.
You’ve earned it. 🍪
