3 Ingredient No Bake Keto Peanut Butter Bars (Paleo, Vegan, Low Carb)

These healthy no bake keto peanut butter bars need just three ingredients and 5 minutes to make! Made with coconut flour and smooth peanut butter, they are the perfect quick and easy dessert recipe to have on hand! Thick, soft and chewy bars which are naturally paleo, vegan, sugar free and low carb! 

Three no bake keto peanut butter bars stacked on top of one another- The text at the top says 3-ingredient keto peanut butter no bake bars.

No Bake Keto Peanut Butter Bars

As someone who always has a healthy dessert or dessert-like-snack on hand, peanut butter somehow always makes an appearance. 

I find recipes with peanut butter in them tend to keep me satisfied between meals. Some of my favorites include these keto peanut butter balls and chocolate peanut butter no bake balls

The best part if that they can also be a healthy dessert too!

Traditional peanut butter bars are something I used to enjoy regularly for desserts and snacks.

…Until I saw the ingredients in them. While delicious, they were chock full of butter, sugar (usually several forms) and grains. 

To combat this, I wanted to create an easy, simple and healthy no bake peanut butter bar recipe. Instead of using grains, I swapped it out for coconut flour. Instead of using sugar, I used a keto approved sweetener, monk fruit syrup. 

I was fearful that my healthy keto peanut butter bars would be…well, a little too healthy tasting. By making it sugar free and low carb, would it still be as delicious as the classic?

You guys, they fit the bill and then some! These healthy no bake keto peanut butter bars turned out amazing! They were thick, soft, chewy and the perfect combo of sweet and salty at the same time. 


Thanks to the coconut flour, they held up really well and was stable at room temperature. 

Coconut flour is unlike any other flours or thickeners out there and cannot be omitted. It also cannot be replaced cup for cup. Coconut flour works like a sponge, so don’t be worried by the minimal amount used!

If you must replace the coconut flour, you can use almond flour, but you will need to double the amount and have more on hand if needed.

Keto-friendly sweeteners are needed to keep this recipe sugar-free and low carb. I used a monk fruit sweetened maple syrup, which provided ample sweetness and maintained a thick consistency to the batter.

The key ingredient is obviously the peanut butter– The star of the recipe! Contrary to popular belief, peanut butter IS keto-friendly and keto-approved. 

A spoonful of peanut butter, with the jar in the background


Many of you have requested more kid-friendly, nut-free and lunchbox friendly snacks and treats. These keto peanut butter bars can easily be adapted. Also, you’ll need this to keep it paleo-friendly too. 

Replace the peanut butter with sunflower seed butter or wow butter, which are both fantastic peanut-free spreads. 

In terms of storage, these no bake peanut butter bars can keep at room temperature. Just ensure they are in a sealed container or covered.

They are best kept refrigerated, and can keep for up to 2 weeks! The bars are also freezer friendly and can be frozen for up to 2 months. 

3 keto peanut butter no bake bars stacked on top of one another with the top bar with a bite mark out of it.

3 Ingredient No Bake Keto Peanut Butter Bars (Paleo, Vegan, Low Carb)

An easy recipe for healthy 3-ingredient no bake keto peanut butter bars! Thick, chewy and completely sugar-free and low carb! Peanut-free option included! 
5 from 25 votes
Print Pin Rate
Course: Dessert
Cuisine: American
Prep Time: 2 minutes
Cook Time: 3 minutes
Total Time: 5 minutes
Calories: 112kcal
Author: Arman



  • Line a loaf pan or square pan with parchment paper and set aside.
  • In a large mixing bowl, add your ingredients and mix well. If the batter is too thin, add more coconut flour. 
  • Transfer the peanut butter bar batter to the lined pan and press firmly in place. Refrigerate for 30 minutes, or until firm. 
  • Cut into 20 bars. 


* Coconut flour can be substituted for double the amount of almond flour. If the batter is too thin, add more until thick and smooth. 
3 Ingredient No Bake Keto Peanut Butter Bars (Paleo, Vegan, Low Carb) can keep at room temperature, for up to a week. They are best kept refrigerated for up to 2 weeks and freezer friendly, for up to 2 months. 


Serving: 1Bar | Calories: 112kcal | Carbohydrates: 4g | Protein: 4g | Fat: 8g | Fiber: 3g | Vitamin A: 200IU | Vitamin C: 3.3mg | Calcium: 50mg | Iron: 0.9mg | NET CARBS: 1g
Tried this recipe?Give us a shout at @thebigmansworld or tag #thebigmansworld!

A collage of 3-ingredient keto peanut butter bars stacked on top of one another.

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    18 thoughts on “3 Ingredient No Bake Keto Peanut Butter Bars (Paleo, Vegan, Low Carb)

    1. Peanuts (peanut butter) are a no-no on the Paleo diet. Tree nuts are allowed as snacks but peanuts are legumes. Pethaps the recipe can use almond butter instead.

    2. It looks like you’re using non-natural peanut butter? Which would have sugar and hydrogenated fats…I’m worried it won’t set if I use natural, since it’s runny and not at all like the PB in your picture…

    3. I am always looking for easy portable fat bombs to keep me going on the golf course. I just made these, and the ease and deliciousness will make them a staple in my kitchen and in my snack pack. Thanks for sharing!

    4. Peanut butter desserts are ALWAYS on my radar. Yesterday I made my favorite two-ingredient peanut butter cookies and now my kitchen still smells like baked peanut butter. It’s splendid. I won’t be hopping off the peanut butter dessert train anytime soon–I am so ready to try out creating these peanut butter bars along with every single other PB dessert on your blog!

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