Keto Peanut Butter Bars

Published May 8, 2021 • Updated June 2, 2025

Reader Rating

4.7 Stars (3 Reviews) 9 Comments

Dairy Free Easy Egg Free

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Looking for a low-carb dessert? Stop right here! Keto chocolate peanut butter bars are the perfect treat for your cravings! It’s a no-bake, low-carb dessert, topped with keto chocolate and a dash of flakey sea salt. It’s rich, fudgy, creamy and insanely delicious!

a stack of peanut butter bars with a bite out of the top one

close up of a bite taken out of the top peanut butter bar

swirly harden chocolate and sea salt on top of a peanut butter bar

stack of chocolate topped bars with a few chips around

chocolate peanut butter bars laying on parchment and an upside down tray

150 Mins

Nutrition Facts

Servings

359

Calories

31.7g

Fat

10.7g

Protein

5.2g

Net Carb

19g

Total Carbs

Disclaimer: The nutrition information provided is an estimate and is for informational purposes only. I am a Doctor of Pharmacy (Pharm.D.); however, this content is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Always consult your physician or other qualified health provider before making any lifestyle changes or beginning a new nutrition program.

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Keto Chocolate Peanut Butter Bars Ingredients

1 ½ cup peanut butter or nut butter
1 cup almond flour
1/2 cup coconut flour
1/4 cup powdered erythritol
1 teaspoon vanilla
Pinch of salt
4 tablespoons melted coconut oil, divided
7 oz sugar free chocolate chips
Flaky Sea Salt

Keto Peanut Butter Bars Directions

STEP

1

Peanut butter layer

In a large bowl, add peanut butter or nut butter, almond flour, coconut flour, powdered sweetener, vanilla and salt. Mix until combined. Add 2 tablespoons of melted coconut oil if the mixture seems dry.
STEP

2

Assemble peanut butter layer

Press peanut butter mixture into a parchment lined square baking dish. Freeze for 30 minutes to harden.
STEP

3

Melt chocolate

In a medium bowl, combine sugar free chocolate chips with 2 tablespoon coconut oil. Melt in the microwave at 30 second intervals, stirring in between, until melted. Option to melt using the double boiler method.
STEP

4

Chocolate layer

Pour melted chocolate over the top of peanut butter layer. Sprinkle with flaky sea salt if desired. Freeze for 2 hours to set the chocolate. Cut into 12 bars.

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Low Carb Peanut Butter Bars Recipe

sliced bars of chocolate peanut on a parchment paper

Low in carbs, low in sugar, and high in flavors, these keto chocolate peanut butter bars are the ultimate treat. They are easy to make and don’t even require an oven. They are a no bake keto dessert!

You can enjoy them as a delicious dessert or an energy bar when you’re feeling low during the day. The best thing about our keto no-bake peanut butter bars is the delicious combination of chocolate and peanut butter; it’s a match made in the heavens! The almond flour and coconut flour form an ideal base when mixed with the nut butter to make the peanut butter mixture. The chocolate topping is rich and salty and the peanut butter layer is delectable creamy. You’ll be soon craving these keto peanut butter bars.

Many people also like to use these keto chocolate peanut butter bars as a fat bomb. Oh, yummy! As it’s a keto dessert, you won’t feel guilty while enjoying these peanut butter bars! You could even enjoy them as a protein bar. The peanut butter adds protein value and each bar is around 10 grams of protein.

These low-carb peanut butter bars feature a scrumptious layer of peanut butter with a topping of keto chocolate.

four peanut butter bars stacked up with chocolate chips around

Is Peanut Butter Keto?

Peanuts are higher in carbs as compared to other nuts such as almond, pecans and macadamia nuts. So, only small quantities of peanut butter are allowed on the keto diet. Luckily, each bars is only 5.2 grams net carbs, so these keto peanut butter bars can easily fit into your low-carb lifestyle. Nothing beats the taste of peanut butter. Almond can be a close replacement, but when you crave peanut butter and chocolate just make these amazing chocolate peanut butter bars.

Make sure you look for a keto peanut butter that doesn’t contain added sugars or carbs. The ingredients should just say peanuts and salt ideally.

Can I Use Another Nut Butter?

Yes, you can. Do make sure that you are using natural nut butter that doesn’t have any added sugar. Almond butter, cashew butter or coconut-based butter are great alternatives to peanut butter. They will make the bars taste different, but they will still be yummy.

four chocolate peanut butter bars with chocolate chips in a container and around

Is Chocolate Keto?

You can use ChocZero’s keto chocolate to make sure that low-carb peanut butter bars are perfect for your keto diet. Their chocolate is keto-approved as it is sugar-free and alcohol-free. You can also use my code KETOFOCUS and save 10% on all your orders!

Melt Chocolate

Melting chocolate can be a little tricky because chocolate often hardens after melting. The easiest tip is to use a low setting in the microwave so that the chocolate melts slowly.

You can also mix a dash of coconut oil with sugar-free chocolate and melt it over a double boiler. Once the chocolate has melted, drizzle it over the peanut butter layer and spread it over the top evenly.

a peanut butter bar with a chocolate layer and flaky sea salt on top

Can I Make Peanut Butter Cups with This Recipe?

Absolutely! Just spoon the mixture into a muffin tray and pop it in the fridge. Do make sure that you grease the tray so that the mixture doesn’t stick to it or you can use mini muffin liners. Once it hardens, top it with melted chocolate and enjoy!

How To Make The Keto Chocolate Peanut Butter Bars?

This recipe is quite simple and easy. All you have to do is mix the ingredients and throw in a dash of chocolate chips. Make sure that you mix the ingredients well and let the bars solidify properly. This will make all the flavors melt into each other, making the perfect low-carb peanut butter bars.

It takes about an hour to set in the fridge. Once they are set, you can cut them into bars and serve them. Pretty simple, right?

Tips To Make The Perfect Low Carb Peanut Butter Bars

The first tip is to get the best ingredients for these keto peanut butter bars. The ingredients can be a little expensive, but they will make for a huge stash of peanut butter bars that you can enjoy whenever you are craving something sweet.

Secondly, this is one of the recipes where you can experiment with the ingredients. Throw in a dash of crushed coconut or sliced almonds as a topping. Delicious!

For the peanut butter, I like to use 100% peanut butter without any salt so that I can sprinkle a dash of flakey sea salt on the top. If your peanut butter is salty, don’t add the salt on the top. Also, do remember to read the labels to make sure that the peanut butter doesn’t contain any added sugar.

Another tip is to make these bars ahead. In this way, you will always have something ready for your sweet craving when you’re on a keto diet – you won’t be tempted to eat something high in carbs.

A useful trick is to use a large chef’s knife and slice the bars using a straight down motion. Don’t see-saw while slicing or the bars will crumble.

chocolate covered bars cut into rows with one sticking out

Can You Leave Low Carb Peanut Butter Bars At Room Temperature?

To help keep their form it’s best to keep these keto peanut butter bars in the refrigerator. They can be kept at room temperature for a few hours but they might get a little soft.

Storage

You can keep these keto peanut butter bars in the fridge. They can be kept for about a week. In the freezer, they can be kept longer, up to 3 months in the freezer.

Rich, sweet and decadent, these keto chocolate peanut butter bars are one of the best desserts for your keto diet. Yes, they are as good as they look! Try them out now! Serve them with a cold glass of nut milk or cup of hot chocolate.

Keto Peanut Butter Bars: FAQS

Can I use a different nut butter instead of peanut butter?

Absolutely! You can substitute peanut butter with almond butter, cashew butter, or any other nut butter you prefer. Just make sure it's unsweetened and low in carbs to keep the recipe keto-friendly!

What can I use instead of erythritol for sweetening?

If you don't have erythritol, you can use other keto-friendly sweeteners like stevia, monk fruit sweetener, or allulose. Just remember to adjust the quantity to match the sweetness level you desire, as some sweeteners are sweeter than others.

How should I store the keto peanut butter bars?

Store the bars in an airtight container in the refrigerator for up to a week. You can also freeze them for longer storage; just make sure to wrap them well to prevent freezer burn!

Can I make these bars dairy-free?

Yes! The recipe is already dairy-free, but if you're using chocolate chips, make sure to choose a dairy-free version. Look for sugar-free chocolate chips that are labeled as dairy-free!

Are these bars suitable for a vegan diet?

To make these bars vegan, you'll need to ensure that the chocolate chips you use are dairy-free and that you choose a plant-based sweetener. The rest of the ingredients are naturally vegan!

Nutritional information & Macros

Amount Per Serving
Calories	359
Fat	31.7g
Protein	10.7g
Total Carbs	19g
Net Carbs	5.2g

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About Annie Lampella, Pharm.D.

Annie Lampella is a Doctor of Pharmacy, mom, and the recipe creator behind KetoFocus. With a B.S. in Genetics from UC Davis and a Pharm.D., she has over 11 years of experience developing family-friendly keto recipes based on the science of human metabolism. She is the author of the Protein Packed cookbook, published by Victory Belt Publishing.

Learn more about Annie →

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